JP6743941B2 - Management system, management device, sensor installation method, management method, and management program - Google Patents

Description

The present invention relates to a management system, a management device, a sensor installation method, a management method, and a management program.

Conventionally, a system for managing welding work has been developed. For example, Patent Document 1 (JP-A-2016-038709) discloses the following technique.

That is, in Patent Document 1, a welding device that supplies a welding wire to a welding torch to perform welding, and a welding data recording device that is built in the welding device and that records welding data regarding a welding operation of the welding device, A welding data management device for collecting and processing the welding data recorded by the welding data recording device of the welding device, wherein the welding data recording device detects the amount of the welding wire supplied to the welding torch. A welding amount detector; a current detector that detects a welding current of the welding device; and a wireless transmitter that wirelessly transmits the welding data recorded by the welding data recording device to the welding data management device, the welding A data management device describes a welding system including a data collection unit that collects the welding data regarding the welding device transmitted from the wireless transmitter, and a data processing unit that processes the collected welding data. ..

JP, 2016-038709, A

However, the welding data transmitted from the recording device built in the welding device may have a different format depending on the type of the welding device, that is, the manufacturer or model of the welding device. Further, a welding device without a built-in recording device, such as an old welding device, may be provided. In such a case, it is difficult to manage the welding work, and in particular, it is more difficult to manage the entire factory including a plurality of welding devices in one system.

The present invention has been made to solve the above problems, and an object thereof is to provide a management system, a management device, and a sensor capable of managing welding work regardless of the type and number of installed welding devices. It is to provide an installation method, a management method and a management program.

(1) In order to solve the above problems, a management system according to an aspect of the present invention includes a magnetic sensor provided corresponding to a welding device and a management device that performs processing relating to welding work. Measures the magnetic field generated by the current flowing through the cable connected to the welding device, and transmits the measurement information indicating the measurement result to the management device, and the management device transmits the measurement information transmitted from the magnetic sensor. Is received, and the processing is performed based on the received measurement information, and the magnetic sensor can be locally installed in the circumferential direction of the cable.

(10) In order to solve the above problems, a management device according to an aspect of the present invention includes an acquisition unit that acquires measurement information indicating a measurement result of a magnetic field generated by a current flowing through a cable connected to a welding device. A processing unit that calculates a current value of the current based on the measurement information acquired by the acquisition unit and calculates a welding amount of welding material based on the calculated current value.

(12) In order to solve the above problems, a sensor installation method according to an aspect of the present invention is a process related to a welding operation based on a magnetic sensor provided corresponding to a welding device and a measurement result by the magnetic sensor. A management method in a management system including a management device for performing the steps of: preparing a magnetic sensor and the management device; and installing the magnetic sensor on a cable connecting a power supply device and the welding device. Including.

(13) In order to solve the above problems, a management method according to an aspect of the present invention is a management method in a management device that performs processing relating to welding work, and is generated by a current flowing through a cable connected to the welding device. The method includes a step of acquiring measurement information indicating a measurement result of a magnetic field, a step of calculating a current value of the acquired current, and a step of calculating a welding amount of welding material based on the calculated current value.

(14) In order to solve the above-mentioned problems, a management program according to an aspect of the present invention is a management program used in a management device, wherein a magnetic field generated by a computer is a current flowing through a cable connected to a welding device. Based on the measurement information acquired by the acquisition unit and the measurement information indicating the measurement result of the, the current value of the current is calculated, based on the calculated current value, welding of welding material It is a program for functioning as a processing unit that calculates the amount.

The present invention can be realized not only as a management device including such a characteristic processing unit but also as a semiconductor integrated circuit that realizes part or all of the management device.

According to the present invention, it is possible to manage welding work regardless of the type and number of installed welding devices.

FIG. 1 is a diagram showing a configuration of a management system according to an embodiment of the present invention. FIG. 2 is a diagram showing an example (part 1) of installation positions of the magnetic sensor according to the embodiment of the present invention. FIG. 3 is a diagram showing an example (No. 2) of installation positions of the magnetic sensor according to the embodiment of the present invention. FIG. 4 is a diagram showing the configuration of the management apparatus according to the embodiment of the present invention. FIG. 5 is a diagram showing a correspondence relationship between the current value of the direct current flowing through the power cable and the strength of the magnetic field generated in the power cable in the management system according to the embodiment of the present invention. FIG. 6 is a diagram showing a graph showing speed information stored in the storage unit in the management device according to the embodiment of the present invention. FIG. 7 is a diagram showing a correspondence table stored in the storage unit in the management device according to the embodiment of the present invention. FIG. 8 is a diagram showing an example of a flowchart defining an operation procedure at the time of initial setting of the management system according to the embodiment of the present invention. FIG. 9 is a diagram showing an example of a flowchart defining an operation procedure during operation of the management system according to the embodiment of the present invention. FIG. 10 is a diagram showing a configuration of a management system according to a modified example of the embodiment of the present invention.

First, the contents of the embodiments of the present invention will be listed and described.

(1) A management system according to an embodiment of the present invention includes a magnetic sensor provided corresponding to a welding device and a management device that performs processing relating to welding work, and the magnetic sensor is connected to the welding device. The current flowing through the cable is measured, and the magnetic field generated by the measurement is transmitted to the management device, and the management device receives the measurement information transmitted from the magnetic sensor, and receives the measurement information. By performing the processing based on the measurement information, the magnetic sensor can be locally installed in the circumferential direction of the cable.

Thus, the magnetic sensor can be locally installed in the circumferential direction of the cable, so that the magnetic sensor can be installed after the cable regardless of the size and type of the diameter of the cable. That is, regardless of the type and number of welding devices to which the cables are connected, the magnetic sensors can be installed in association with the welding devices. Therefore, it is possible to manage the welding work regardless of the type and number of installed welding devices.

Further, when a plurality of welding devices and a plurality of magnetic sensors are provided, it is possible to manage the welding work for each welding device based on the measurement information transmitted from each of the plurality of magnetic sensors.

(2) Preferably, the magnetic sensor is installed in the cable that connects a power supply device and the welding device.

In this way, the magnetic sensor is installed on the power cable for supplying electric power to the welding device, so that the magnetic field generated by the current supplied to the welding device is accurately measured and the welding work is managed more accurately. be able to.

(3) Preferably, the management device determines whether or not a current is flowing through the cable, as the processing, based on the measurement information.

With such a configuration, it is possible to grasp the operating status of the welding device connected to the cable based on the measurement result of the magnetic field generated in the cable.

(4) Preferably, the management device calculates a working time of the welding work as the processing based on the measurement information.

With such a configuration, for example, the production cost of the product and the quality of the product can be evaluated based on the working time.

(5) Preferably, the management device calculates a current value of the current as the process based on the measurement information.

With such a configuration, the operation of the welding device can be accurately managed by using the calculated current value, and the management regarding the welding work can be more appropriately performed.

(6) More preferably, the management device further calculates the welding amount of the welding material as the process based on the current value.

With such a configuration, it is possible to calculate the production cost of the product and evaluate the quality of the product, for example, based on the welding amount of the welding material.

(7) Preferably, the management device calculates the welding amount based on the type of the linear welding material, the size of the diameter of the welding material, and the current value.

With such a configuration, the welding amount can be calculated more accurately in consideration of the type of welding material and the size of the diameter.

(8) More preferably, the management device specifies a welding speed of the welding material based on the type, the size of the diameter, and the current value, and the welding amount based on the specified welding speed. To calculate.

With such a configuration, the welding amount of the welding material can be calculated more accurately by an appropriate method.

(9) Preferably, the management device specifies the welding posture of the worker as the process based on the current value.

With such a configuration, for example, the difficulty level of the welding work can be grasped based on the welding posture, and the production cost of the product can be calculated and the quality of the product can be evaluated according to the difficulty level of the welding work.

(10) The management device according to the embodiment of the present invention is acquired by the acquisition unit that acquires the measurement information indicating the measurement result of the magnetic field generated by the current flowing through the cable connected to the welding device, and the acquisition unit. A processing unit that calculates a current value of the current based on the measurement information and calculates a welding amount of the welding material based on the calculated current value.

With such a configuration, regardless of the diameter and type of the cable, for example, by installing a magnetic sensor after the cable, the measurement result of the magnetic field generated in the cable is acquired, and based on the measurement result. The amount of welding can be calculated. Therefore, it is possible to manage the welding work regardless of the type and number of installed welding devices.

Further, when a plurality of welding devices and a plurality of magnetic sensors are provided, it is possible to manage the welding work for each welding device based on the measurement information transmitted from each of the plurality of magnetic sensors.

Further, with the configuration for calculating the welding amount of the welding material, for example, it is possible to calculate the production cost of the product and evaluate the quality of the product based on the welding amount of the welding material.

(11) Preferably, the acquisition unit acquires the measurement information indicating the measurement result by the magnetic sensor installed in the cable that connects the power supply device and the welding device.

In this way, the magnetic sensor is installed on the power cable for supplying electric power to the welding device, so that the magnetic field generated by the current supplied to the welding device is accurately measured and the welding work is managed more accurately. be able to.

(12) A sensor installation method according to an embodiment of the present invention includes a magnetic sensor provided corresponding to a welding device, and a management device that performs processing relating to welding work based on a measurement result of the magnetic sensor. A method of installing a sensor in a management system, comprising: preparing the magnetic sensor and the management device; and installing the magnetic sensor on a cable connecting a power supply device and the welding device.

With such a method, the magnetic sensor can be installed after the cable regardless of the size and type of the diameter of the cable. That is, regardless of the type and number of welding devices to which the cables are connected, the magnetic sensors can be installed in association with the welding devices. Therefore, it is possible to manage the welding work regardless of the type and number of installed welding devices.

Further, when a plurality of welding devices and a plurality of magnetic sensors are provided, it is possible to manage the welding work for each welding device based on the measurement information transmitted from each of the plurality of magnetic sensors.

In addition, the configuration in which the magnetic sensor is installed in the power cable for supplying electric power to the welding device enables the magnetic field generated by the electric current supplied to the welding device to be accurately measured and the welding work to be managed more accurately. it can.

(13) A management method according to an embodiment of the present invention is a management method in a management device that performs processing relating to welding work, and is a measurement showing a measurement result of a magnetic field generated by a current flowing through a cable connected to the welding device. The method includes a step of acquiring information, a step of calculating a current value of the acquired current, and a step of calculating a welding amount of welding material based on the calculated current value.

With such a method, regardless of the size and type of the diameter of the cable, for example, by installing a magnetic sensor after the cable, the measurement result of the magnetic field generated in the cable is acquired and based on the measurement result. The amount of welding can be calculated. Therefore, it is possible to manage the welding work regardless of the type and number of installed welding devices.

Further, when a plurality of welding devices and a plurality of magnetic sensors are provided, it is possible to manage the welding work for each welding device based on the measurement information transmitted from each of the plurality of magnetic sensors.

Further, with the configuration for calculating the welding amount of the welding material, for example, it is possible to calculate the production cost of the product and evaluate the quality of the product based on the welding amount of the welding material.

(14) A management program according to an embodiment of the present invention is a management program used in a management device, and is measurement information indicating a measurement result of a magnetic field generated by a current flowing through a cable connected to a welding device by a computer. Based on the measurement information acquired by the acquisition unit and the acquisition unit to obtain the, the current value of the current is calculated, based on the calculated current value, the processing unit that calculates the welding amount of the welding material, It is a program to function as.

With such a configuration, regardless of the diameter and type of the cable, for example, by installing a magnetic sensor after the cable, the measurement result of the magnetic field generated in the cable is acquired, and based on the measurement result. The amount of welding can be calculated. Therefore, it is possible to manage the welding work regardless of the type and number of installed welding devices.

Further, when a plurality of welding devices and a plurality of magnetic sensors are provided, it is possible to manage the welding work for each welding device based on the measurement information transmitted from each of the plurality of magnetic sensors.

Further, with the configuration for calculating the welding material welding amount, for example, it is possible to calculate the production cost of the product based on the welding amount and evaluate the quality.

Embodiments of the present invention will be described below with reference to the drawings. It should be noted that the same or corresponding parts in the drawings are designated by the same reference numerals and the description thereof will not be repeated. Further, at least a part of the embodiments described below may be arbitrarily combined.

<Structure and basic operation>
[Management system]
FIG. 1 is a diagram showing a configuration of a management system according to an embodiment of the present invention.

Referring to FIG. 1, the management system 301 includes one or more welding devices 101, one or more magnetic sensors 111, one or more welding torches 121, one or more gas cylinders 122, and a power supply device 131. And an access point 151, a management device 201, and a terminal device 202.

The magnetic sensor 111 is provided corresponding to the welding device 101. The welding torch 121 is provided corresponding to the welding device 101. Further, the gas cylinder 122 is provided corresponding to the welding device 101. The gas cylinder 122 may be provided corresponding to the plurality of welding devices 101.

The welding apparatus 101 is, for example, a semi-automatic welding machine, and is assigned to each worker. The worker installs the welding apparatus 101 in the vicinity of the work place before starting the welding operation, and attaches one end of the power cable 51, one end of the control cable 52, and one end of the gas cable 53 to a plurality of unillustrated welding apparatuses 101. Connect to each terminal. Further, the worker connects the welding cable 54 extending from the welding torch 121 to the corresponding position of the welding device 101.

Further, the worker connects the other end of the power cable 51 and the other end of the control cable 52 to a plurality of terminals (not shown) of the power supply device 131, respectively, and connects the other end of the gas cable 53 to the gas cylinder 122. Further, the worker connects one end of the grounding cable 55 to the base material A, which is the welding target, and connects the other end of the grounding cable 55 to a terminal (not shown) of the power cable 131.

When the worker grips the welding torch 121 and performs a predetermined operation, for example, the power supply device 131 detects the operation via the welding device 101 and the control cable 52. When the power supply device 131 detects the operation, for example, the power supply device 131 converts the alternating current received from the power system side into a direct current and supplies the direct current to the welding device 101 via the power cable 51.

The welding device 101 operates by receiving a direct current from the power supply device 131 via the power cable 51, and sends the linear welding material M to the welding torch 121 via the welding cable 54. The welding material M is, for example, a welding wire, which is wound into a coil and provided in the welding device 101.

The welding material M supplied to the welding torch 121 is supplied with a direct current through the power supply device 131, the power supply cable 51, the welding device 101, the welding cable 54, and the welding torch 121 to become an electrode. Then, the welding material M and the base material A are melted and integrated by the heat generated by the arc generated between the welding material M which is the electrode and the base material A.

The welding apparatus 101 further discharges the shield gas supplied from the gas cylinder 122 via the gas cable 53 from the welding torch 121 via the welding cable 54. The shield gas is carbon dioxide, for example. As a result, the shield gas is blown onto the base material A during the welding operation, so that it is possible to prevent contact between the welded portion of the base material A and the outside air.

The magnetic sensor 111 is, for example, a battery-driven sensor, and regularly or irregularly measures the magnetic field generated by the direct current flowing through the power cable 51. Then, the magnetic sensor 111 transmits magnetic field information (measurement information) indicating the measurement result to the access point 151.

The magnetic field information transmitted from the magnetic sensor 111 is at least the strength of the magnetic field generated in the power cable 51, the voltage calculated based on the strength of the magnetic field, and the current value calculated based on the strength of the magnetic field. Indicates either one. Here, the magnetic field information indicates the strength of the magnetic field.

The access point 151 receives the magnetic field information from the magnetic sensor 111 and transmits the received magnetic field information to the management device 201 via the internal network 401.

The management device 201 receives the magnetic field information transmitted from the access point 151 via the internal network 401, and performs processing relating to welding work based on the received magnetic field information.

Specifically, the management device 201 calculates the work time, the welding amount of the welding material M, the shield gas usage amount, and the welding posture of the worker at the time of the welding work as the processing related to the welding work. Do at least one of these.

In addition, the management device 201 outputs, for example, at least one of the processing result, that is, the calculated work time, the amount of welding, the amount of shield gas used, and the identified welding posture, in a recognizable manner. Specifically, the management device 201 displays characters or the like indicating the processing result on the monitor of the terminal device 202.

When the management system 301 includes the plurality of welding devices 101, the plurality of magnetic sensors 111, the plurality of welding torches 121, and the plurality of gas cylinders 122, the management device 201 includes a plurality of the plurality of magnetic sensors 111 respectively transmitted from the plurality of magnetic sensors 111. Based on the magnetic field information, for example, a process related to welding work for each welding device 101 is performed. Then, the administrator or the like can manage the welding work in the entire factory in which the plurality of welding devices 101 are provided by confirming the processing result displayed on the monitor of the terminal device 202, for example.

Further, the current supplied from the power supply device 131 to the welding device 101 via the power supply cable 51 may be an alternating current. In this case, the magnetic sensor 111 measures the magnetic field generated by the alternating current flowing through the power cable 51.

[Installation position of magnetic sensor]
(A) Example (1)
FIG. 2 is a diagram showing an example (part 1) of installation positions of the magnetic sensor according to the embodiment of the present invention. In FIG. 2, the cross section of the power cable 51 and the magnetic sensor 111 are shown.

Referring to FIG. 2, a plurality of conductive wires 61 are accommodated in the power cable 51 in a twisted state. When a direct current flows through the power cable 51, a magnetic field is generated in the circumferential direction of each conductive wire 61.

Here, for example, a clamp meter may be used as the sensor for measuring the magnetic field generated in the power cable 51. When the clamp meter is used, the power cable 51 is sandwiched between the iron cores of the clamp meter. When a magnetic field is generated in the circumferential direction of the iron core due to the direct current flowing through the power cable 51, a voltage is output due to a magnetic flux passing through a Hall element provided in the iron core. The magnetic field generated in the cable 51 can be measured.

However, depending on the diameter or type of the power cable 51, the power cable 51 cannot be sandwiched between the iron cores, and the magnetic field generated in the power cable 51 may not be measured. Therefore, in the management system 301 according to the embodiment of the present invention, instead of using the clamp meter, the magnetic sensor 111 locally installed in the circumferential direction of the power cable 51 is used.

The magnetic sensor 111 directly measures a part of the magnetic field generated around the power cable 51, unlike a clamp meter that converges the magnetic field generated around the power cable 51 into an iron core and converts the voltage into a voltage.

Therefore, the measurement of the magnetic field by the magnetic sensor 111 may be lower in measurement accuracy than the measurement of the magnetic field by the clamp meter. However, even if the measurement accuracy is not as high as that of the clamp meter, it is possible to determine whether or not a current is flowing through the power cable 51 based on the measurement result by the magnetic sensor 111. Therefore, it is possible to manage the welding work by using the magnetic sensor 111, such as grasping the operating status of the welding apparatus 101.

More specifically, the magnetic sensor 111 is, for example, an IC (Integrated Circuit) chip including a sensor unit 21 that measures a magnetic field and a processing circuit 22 that performs wireless communication. The magnetic sensor 111 is fixed to the power cable 51 using a band 65 or the like.

The sensor portion 21 covers a part of the outer circumference of the power cable 51, for example, a portion of 50% or less of the outer circumference. More preferably, the sensor section 21 covers 30% or less of the outer circumference of the power cable 51. Then, the sensor unit 21 measures, for example, the magnetic field generated in the conductive wire 61 closest to itself among the plurality of conductive wires 61 as the magnetic field generated in the power cable 51.

The processing circuit 22 transmits a wireless signal including magnetic field information indicating the measurement result by the sensor unit 21 to the management device 201.

Note that, as described above, the magnetic sensor 111 can be installed regardless of the size and type of the diameter of the power cable 51. Therefore, for example, a plurality of welding devices 101 are provided and each welding device 101 is provided. Even if the diameters of the power cables 51 connected to each other are different from each other, the same magnetic sensor 111 can be installed for each power cable 51.

(B) Example (2)
FIG. 3 is a diagram showing an example (No. 2) of installation positions of the magnetic sensor according to the embodiment of the present invention. In FIG. 3, the cross section of the welding cable 54 and the magnetic sensor 111 are shown.

Referring to FIG. 3, welding cable 54 accommodates power cable 51 including a plurality of conductive wires 61 and welding material M, control cable 52, and gas cable 53.

The magnetic sensor 111 may be installed in the welding cable 54 instead of being installed in the power cable 51. That is, the magnetic sensor 111 may be locally installed in the circumferential direction of the welding cable 54.

However, in this case, the distance between the magnetic sensor 111 and the power cable 51 differs depending on the installation position of the magnetic sensor 111 with respect to the welding cable 54. That is, when the magnetic sensor 111 is installed at a position relatively far from the power cable 51 housed in the welding cable 54, the magnetic sensor 111 may not be able to accurately measure the magnetic field generated in the power cable 51. is there. Therefore, as shown in FIG. 2, the magnetic sensor 111 is preferably installed directly on the power cable 51.

[Management device]
FIG. 4 is a diagram showing the configuration of the management apparatus according to the embodiment of the present invention.

Referring to FIG. 4, management device 201 includes an acquisition unit 11, a processing unit 12, a storage unit 13, and an output unit 14.

The acquisition unit 11 receives the magnetic field information transmitted from the magnetic sensor 111 via the access point 151 and the internal network 401, and outputs the received magnetic field information to the processing unit 12.

The processing unit 12 stores, for example, the magnetic field information received from the acquisition unit 11 in the storage unit 13 in association with the date and time information indicating the current date and time. Then, the processing unit 12 performs a process related to welding work based on the magnetic field information and the date and time information stored in the storage unit 13. Further, the processing unit 12 outputs the result information indicating the result of the processing to the output unit 14.

The output unit 14 outputs the content of the result information received from the processing unit 12 in a recognizable manner. Specifically, the output unit 14 displays, for example, a character indicating the content of the result information on the monitor of the terminal device 202. Hereinafter, details of the processing by the processing unit 12 will be described.

(A) Judgment of Operating Status of Welding Device and Calculation of Working Time For example, the processing unit 12 reads magnetic field information stored in the storage unit 13 as a process related to welding work, and based on the read magnetic field information, the welding device The operating time of welding work is calculated.

More specifically, for example, when the strength of the magnetic field indicated by the magnetic field information read from the storage unit 13 is equal to or higher than the threshold Th, the processing unit 12 determines that a current is flowing in the power cable 51, and the welding apparatus 101. Determine that is running. In addition, when the strength of the magnetic field indicated by the magnetic field information read from the storage unit 13 is less than the threshold Th, the processing unit 12 determines that no current is flowing in the power cable 51, and the welding apparatus 101 is not in operation. Judge that there is.

Then, the processing unit 12 refers to, for example, the date and time information associated with the magnetic field information, and makes the above determination for each of the plurality of magnetic field information stored in the storage unit 13 in a predetermined period such as one week. By performing the welding operation, the operating time of the welding apparatus 101 in the predetermined period is calculated as the working time of the welding operation.

(B) Calculation of Current Value In addition, the processing unit 12 calculates the current value Y of the direct current flowing through the power cable 51, for example, based on the magnetic field information read from the storage unit 13 as a process related to welding work.

Specifically, the storage unit 13 stores current magnetic field information indicating a relational expression f between the current value Y of the direct current flowing through the power cable 51 and the strength X of the magnetic field generated in the power cable 51. The relational expression f is calculated by the processing unit 12 at the time of initial setting before the start of welding work, for example.

FIG. 5 is a diagram showing a correspondence relationship between the current value of the direct current flowing through the power cable and the strength of the magnetic field generated in the power cable in the management system according to the embodiment of the present invention. The vertical axis of the graph shown in FIG. 5 represents the current value Y, and the horizontal axis represents the magnetic field strength X.

As a specific method of calculating the relational expression f, for example, the administrator attaches the current sensor to the power cable 51 at the time of initial setting. The current sensor is, for example, a handy-type DC current sensor, measures the current value Y, and sends current information indicating the measurement result to the management device 201. Then, the acquisition unit 11 in the management device 201 receives the current information transmitted from the current sensor and outputs the received current information to the processing unit 12.

The processing unit 12 calculates the relational expression f based on the current value Y indicated by the current information from the current sensor and the magnetic field strength X indicated by the magnetic field information from the magnetic sensor 111.

More specifically, for example, when the processing unit 12 receives the current information from the acquisition unit 11, the processing unit 12 reads the latest magnetic field information stored in the storage unit 13, and reads the current value Y indicated by the current information and the read magnetic field information. Correlate with the indicated magnetic field strength X. Then, the processing unit 12 calculates the relational expression f by using the plurality of sets of the current value Y and the magnetic field strength X which are associated in this way.

Specifically, it is assumed that the current value Y indicated by the current information received by the processing unit 12 at a certain timing is Y0, and the magnetic field strength X associated with the current value Y0 is X0. It is also assumed that the current value Y indicated by the current information received by the processing unit 12 at another timing is Y1 and the magnetic field strength X associated with the current value Y1 is X1. Further, it is assumed that the general expression of the relational expression f is “Y=aX+b”.

In this case, the processing unit 12 calculates a={(Y1-Y0)/(X1-X0)} and calculates b={(X1*Y0-X0*Y1)/(X1-X0)}. Then, the relational expression f is calculated.

Note that the processing unit 12 is not limited to the above calculation method, and may calculate the relational expression f by linear regression analysis using a plurality of sets of the current value Y and the magnetic field strength X, for example. ..

After calculating the relational expression f, the processing unit 12 stores the current magnetic field information indicating the calculated relational expression f in the storage unit 13.

Then, the processing unit 12 outputs, for example, completion information indicating that the storage of the current magnetic field information is completed to the output unit 14. Upon receiving the completion information from the processing unit 12, the output unit 14 displays on the monitor of the terminal device 202, for example, that the storage of the current magnetic field information is completed. When the administrator confirms that the storage of the current magnetic field information is completed by checking the display on the monitor, the administrator removes the current sensor from the power cable 51.

In operation, when the processing unit 12 receives the magnetic field information from the magnetic sensor 111 via the access point 151, the internal network 401, and the acquisition unit 11, the relational expression f indicated by the current magnetic field information stored in the storage unit 13 is received. , And the strength X of the magnetic field indicated by the magnetic field information, the current value Y is calculated.

Note that the processing unit 12 may be configured to calculate a relational expression f indicating a correspondence relation between the temperature, the current value Y, and the magnetic field strength X at the time of initial setting.

For example, a temperature sensor is provided around the welding device 101. The temperature sensor measures the environmental temperature of the welding apparatus 101 and transmits the temperature information that is the measurement result to the management apparatus 201 via the access point 151 and the internal network 401.

Then, when the processing unit 12 receives the temperature information from the temperature sensor via the access point 151, the internal network 401, and the acquisition unit 11 at the time of initial setting, the processing unit 12 uses the temperature indicated by the temperature information, for example, to determine the temperature. A relational expression f indicating the correspondence between the current value Y and the magnetic field strength X is calculated for each range.

Specifically, the processing unit 12 includes a case where the environment temperature of the welding apparatus 101 is 10° C. or lower, a case where the environment temperature is 10° C. to 20° C., a case where the environment temperature is 20° C. to 30° C., and an environment. A plurality of relational expressions f indicating the corresponding relation between the current value Y and the magnetic field strength X in each case where the temperature is 30° C. or higher are calculated. Then, the processing unit 12 stores the current magnetic field information indicating the calculated plurality of relational expressions f in the storage unit 13.

Then, in operation, when the processing unit 12 receives the temperature information from the temperature sensor, the processing unit 12 corresponds to the temperature indicated by the temperature information among the plurality of relational expressions f indicated by the current magnetic field information stored in the storage unit 13. The relational expression f is specified.

Then, when the processing unit 12 receives the magnetic field information from the magnetic sensor 111, the processing unit 12 calculates the current value Y based on the magnetic field strength X indicated by the magnetic field information and the specified relational expression f.

(C) Calculation of welding amount Further, the processing unit 12 further calculates the welding amount of the welding material M based on the calculated current value Y as a process related to welding work.

More specifically, the storage unit 13 stores speed information indicating the correspondence between the current value Y of the direct current flowing through the power cable 51 and the welding speed of the welding material M. Then, the processing unit 12 calculates the welding amount based on the speed information stored in the storage unit 13 and the working time calculated by the method described in “(a) Calculation of working time”.

For example, the speed information shows a graph showing a correspondence relationship between the type of the welding material M, the diameter of the welding material M, the current value Y, and the welding speed of the welding material M.

FIG. 6 is a diagram showing a graph showing speed information stored in the storage unit in the management device according to the embodiment of the present invention. The vertical axis of the graph shown in FIG. 6 represents the deposition rate [g/min], and the horizontal axis represents the current value Y [A].

In the graph shown in FIG. 6, when the welding material M is a “metal-based flux-cored wire” and the diameters are 2.0 mm and 1.6 mm, respectively, the correspondence relationship between the current value Y and the deposition rate is shown. Indicates.

Further, in the graph shown in FIG. 6, when the welding material M is a “rutile type flux-cored wire” and the diameters are 2.0 mm, 1.6 mm and 1.2 mm, respectively, the current value Y and The correspondence with the welding speed is shown.

Further, in the graph shown in FIG. 6, when the welding material M is “solid wire” and the diameters are 2.0 mm, 1.6 mm and 1.2 mm, respectively, the current value Y and the welding speed are shown. The correspondence relationship of is shown.

Further, for example, when the administrator inputs the type and diameter of the welding material M to the terminal device 202 at the time of initial setting, the terminal device 202 notifies the management device 201 of the input content. Then, the information acquisition unit (not shown) in the management device 201 outputs the material information indicating the type and diameter of the welding material M notified from the terminal device 202 to the processing unit 12.

Then, the processing unit 12 receives the material information received from the information acquisition unit, the current value Y calculated by the method described in “(b) Calculation of current value”, and the speed information stored in the storage unit 13, that is, FIG. The welding speed of the welding material M is specified based on the graph shown in FIG.

Specifically, when the type indicated by the material information is “solid wire”, the size of the diameter indicated by the material information is 1.2 mm, and the current value Y calculated by the processing unit 12 is 250 A, Part 12 specifies 75 g/min as the deposition rate.

When the working time calculated by the processing unit 12 is 180 minutes, the processing unit 12 calculates the welding amount as 75 g/min×180 min=13500 g.

The processing unit 12 may further calculate the usage amount of the shield gas based on the calculated deposition amount as the processing related to the welding work. For example, the processing unit 12 calculates (constant K)×(amount of welding material M deposited) as the amount of shield gas used.

(D) Identification of Welding Position Further, as a process related to welding work, the processing unit 12 further specifies the welding position of the worker during the welding work based on the calculated current value Y.

Specifically, the storage unit 13 stores a correspondence table T indicating the correspondence between the diameter of the welding material M, the current value Y of the direct current flowing through the power cable 51, and the welding posture.

FIG. 7 is a diagram showing a correspondence table stored in the storage unit in the management device according to the embodiment of the present invention.

Referring to FIG. 7, in correspondence table T, when the diameter of welding material M is 2.0 mm and current value Y is 150 A to 350 A, the welding posture is “downward”. When the diameter of the welding material M is 2.0 mm and the current value Y is 150 A to 300 A, the welding posture is "horizontal fillet" or "sideways". In addition, when the diameter of the welding material M is 2.0 mm and the current value Y is 100 A to 200 A, the welding posture is "upright".

The processing unit 12 specifies the welding posture of the worker based on, for example, the material information received from the above-described information acquisition unit, the calculated current value Y, and the correspondence table T stored in the storage unit 13.

Specifically, when the diameter indicated by the material information is 2.0 mm and the current value Y is 100 A, the processing unit 12 specifies "upright" as the welding posture.

Note that the processing unit 12 further uses at least one of the calculated work time, the welding amount of the welding material M, the usage amount of the shield gas, and the specified welding posture as the processing related to the welding work. Alternatively, the configuration may be such that the production cost of the product is calculated and the quality of the product is evaluated.

In this case, the processing unit 12 outputs, for example, product information indicating the calculated production cost and quality evaluation result to the output unit 14, and the output unit 14 can recognize the content indicated by the product information received from the processing unit 12. Output to.

<Operation flow>
[At initial setting]
FIG. 8 is a diagram showing an example of a flowchart defining an operation procedure at the time of initial setting of the management system according to the embodiment of the present invention.

Each device in the management system 301 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads a program including some or all of the steps of the following sequence from a memory (not shown) and executes the program. The programs of these plural devices can be installed from the outside. The programs of the plurality of devices and the plurality of sensors are distributed while being stored in a recording medium.

Referring to FIG. 8, first, at the time of initial setting, the administrator prepares magnetic sensor 111 and management device 201 (step S11). Next, the administrator installs the magnetic sensor 111 and the current sensor on the power cable 51 (step S12).

Next, the manager inputs the type and diameter size of the welding material M into the terminal device 202, and the terminal device 202 notifies the management device 201 of the input contents (step S13).

Next, the management device 201, based on the magnetic field strength X indicated by the magnetic field information from the magnetic sensor 111 and the current value Y indicated by the current information from the current sensor, the current value Y of the direct current flowing through the power cable 51. And the relational expression f with the strength X of the magnetic field generated in the power cable 51 are calculated (step S14).

Next, the management device 201 saves the current magnetic field information indicating the calculated relational expression f and notifies that the storage of the current magnetic field information is completed by displaying it on the monitor of the terminal device 202 (step S15). ..

Next, when the administrator confirms that the storage of the current magnetic field information is completed by confirming the display on the monitor or the like, the administrator removes the current sensor from the power cable 51 (step S16). The administrator may input the type and diameter of the welding material M after removing the current sensor (step S13).

[During operation]
FIG. 9 is a diagram showing an example of a flowchart defining an operation procedure during operation of the management system according to the embodiment of the present invention.

Referring to FIG. 9, first, in operation, management device 201 receives the magnetic field information transmitted from magnetic sensor 111 (step S21). Then, the management device 201 determines whether or not a current is flowing through the power cable 51 based on the received magnetic field information, and based on the determination result, determines whether or not the welding device 101 is in operation. (Step S22).

Next, the management device 201 calculates the work time of the welding work based on the determination result of whether the welding device 101 is in operation (step S23).

Next, the management device 201 calculates the current value Y of the direct current flowing through the power cable 51 based on the magnetic field information transmitted from the magnetic sensor 111 and the current magnetic field information stored at the time of initial setting (step S24). ..

Next, the management device 201 specifies the welding speed of the welding material M based on the type and diameter size of the welding material M notified from the terminal device 202 at the time of initial setting, and the calculated current value Y ( Step S25).

Next, the management device 201 calculates the welding amount of the welding material M and the usage amount of the shield gas based on the specified welding speed and the calculated working time (step S26).

Next, the management device 201 specifies the welding posture of the worker based on the diameter of the welding material M, the current value Y, and the posture information stored in advance (step S27).

Next, the management apparatus 201 calculates the production cost of the product and evaluates the quality based on the calculated work time, the welding amount of the welding material M and the usage amount of the shield gas, and the specified welding posture (step S28). ).

Then, the management apparatus 201 outputs the processing result, for example, the work time, the welding amount of the welding material M, the usage amount of the shield gas, the welding attitude, the production cost, and the quality evaluation result in a recognizable manner (step S29). ..

Further, the management device 201 determines whether the welding device 101 is in operation (step S22), calculates the working time (step S23), calculates the current value Y (step S24), and specifies the welding speed (step S22). S25), calculation of the amount of welding material M deposited and the amount of shield gas used (step S26), identification of the welding posture (step S27), calculation of production cost and evaluation of quality (step S28). Not limited to the configuration, for example, the configuration may be such that a part of the processing described above is performed.

<Modification>
FIG. 10 is a diagram showing a configuration of a management system according to a modified example of the embodiment of the present invention.

Referring to FIG. 10, the management system 301 may include one or more welding devices 101, one or more welding torches 122, and one or more welding devices 102 instead of one or more gas cylinders 132. Good.

The welding device 102 is, for example, a covered arc welder, and is assigned to each worker. Before starting the welding operation, the worker installs the welding device 102 near the work place and connects one end of the power cable 51 to a terminal (not shown) of the welding device 102.

Further, the worker connects the other end of the power cable 51 to a terminal (not shown) of the power supply device 131. Further, the worker connects one end of the grounding cable 55 to the base material A, which is the welding target, and connects the other end of the grounding cable 55 to a terminal (not shown) of the power cable 131.

The welding device 102 operates by receiving a direct current from the power supply device 131 via the power cable 51. Then, the welding rod Ma attached to the tip of the welding device 102 serves as an electrode, and the welding rod Ma and the base metal A are melted and integrated by the heat generated by the arc generated between the welding rod Ma and the base metal A. To do.

In this case, like the magnetic sensor 111 shown in FIG. 1, the magnetic sensor 111 is installed in the power cable 51, measures the magnetic field generated in the power cable 51, and outputs the magnetic field information indicating the measurement result to the access point 151 and the internal network. It transmits to the management apparatus 201 via 401. Then, the management device 201 receives the magnetic field information from the magnetic sensor 111 and performs a process relating to the welding work based on the received magnetic field information, as in the management device 201 shown in FIG.

By the way, the above-mentioned Patent Document 1 describes a system that includes a recording device that is built in a welding device and that records welding data relating to a welding operation, and a management device that collects welding data and processes the collected welding data. Has been done.

However, the welding data transmitted from the recording device built in the welding device may have a different format depending on the type of the welding device, that is, the manufacturer or model of the welding device. Further, a welding device without a built-in recording device, such as an old welding device, may be provided. In such a case, it is difficult to manage the welding work, and in particular, it is more difficult to manage the entire factory including a plurality of welding devices in one system.

On the other hand, in the management system 301 according to the embodiment of the present invention, the magnetic sensor 111 is provided corresponding to the welding device 101. The management device 201 performs processing relating to welding work. Further, the magnetic sensor 111 measures the magnetic field generated by the current flowing through the power cable 51 connected to the welding device 201, and transmits the measurement information indicating the measurement result to the management device 201. The management device 201 receives the measurement information transmitted from the magnetic sensor 111 and performs processing based on the received measurement information. Further, the magnetic sensor 111 can be locally installed in the circumferential direction of the power cable 51.

In this way, the magnetic sensor 111 can be locally installed in the circumferential direction of the power cable 51, so that the magnetic sensor 111 can be retrofitted to the power cable 51 regardless of the diameter and type of the power cable 51. It can be installed at. That is, regardless of the type and number of welding devices 101 to which the power cable 51 is connected, the magnetic sensor 111 can be installed in association with the welding device 101. Therefore, regardless of the type and number of the installed welding apparatuses 101, it is possible to manage the welding work.

Further, when the plurality of welding devices 101 and the plurality of magnetic sensors 111 are provided, it is possible to manage the welding work for each welding device 101 based on the measurement information transmitted from each of the plurality of magnetic sensors 111. ..

Further, in the management system 301 according to the embodiment of the present invention, the magnetic sensor 111 is installed in the power cable 51 that connects the power supply device 131 and the welding device 101.

As described above, the magnetic sensor 111 is installed in the power cable 51 for supplying electric power to the welding apparatus 101, so that the magnetic field generated by the direct current supplied to the welding apparatus 101 is accurately measured, and management regarding welding work is performed. Can be done more accurately.

Further, in the management system 301 according to the embodiment of the present invention, the management device 201 determines, based on the measurement information from the magnetic sensor 111, whether or not current is flowing through the power cable 51 as the above process.

With such a configuration, the operating status of the welding device 101 connected to the power cable 51 can be grasped based on the measurement result of the magnetic field generated in the power cable 51.

Further, in the management system 301 according to the embodiment of the present invention, the management device 201 calculates the working time of the welding work as the above processing based on the measurement information from the magnetic sensor 111.

With such a configuration, for example, the production cost of the product and the quality of the product can be evaluated based on the working time.

Further, in the management system 301 according to the embodiment of the present invention, the management device 201 calculates the current value Y of the direct current flowing through the power cable 51 as the above processing based on the measurement information from the magnetic sensor 111.

With such a configuration, the calculated current value Y can be used to accurately manage the operation of the welding apparatus 101 and more appropriately manage the welding operation.

Further, in the management system 301 according to the embodiment of the present invention, the management device 201 further calculates the welding amount of the welding material M based on the calculated current value Y as the above process.

With such a configuration, for example, the production cost of the product can be calculated and the quality of the product can be evaluated based on the welding amount of the welding material M.

Moreover, in the management system 301 according to the embodiment of the present invention, the management device 201 determines the welding material based on the type of the linear welding material M, the diameter of the welding material M, and the calculated current value Y. The amount of M deposited is calculated.

In this way, the amount of welding can be calculated more accurately in consideration of the type and diameter of the welding material M.

In addition, in management system 301 according to the embodiment of the present invention, management device 201 welds welding material M based on the type of welding material M, the size of the diameter of welding material M, and the calculated current value Y. The speed is specified, and the welding amount of the welding material M is calculated based on the specified welding speed.

With such a configuration, the welding amount of the welding material M can be calculated more accurately by an appropriate method.

Further, in the management system 301 according to the embodiment of the present invention, the management device 201 specifies the welding posture of the worker as the above-mentioned processing based on the calculated current value Y.

With such a configuration, for example, the difficulty level of the welding work can be grasped based on the welding posture, and the production cost of the product can be calculated and the quality of the product can be evaluated according to the difficulty level of the welding work.

Further, in management device 201 according to the exemplary embodiment of the present invention, acquisition unit 11 acquires measurement information indicating a measurement result of a magnetic field generated by a DC current flowing in power cable 51 connected to welding device 101. Further, the processing unit 12 calculates the current value Y of the direct current based on the measurement information acquired by the acquisition unit 11, and calculates the welding amount of the welding material M based on the calculated current value Y.

With such a configuration, regardless of the size and type of the diameter of the power cable 51, for example, by installing the magnetic sensor 111 after the power cable 51, the measurement result of the magnetic field generated in the power cable 51 is acquired. Then, the amount of welding can be calculated based on the measurement result. Therefore, regardless of the type and number of the installed welding apparatuses 101, it is possible to manage the welding work.

Further, when the plurality of welding devices 101 and the plurality of magnetic sensors 111 are provided, it is possible to manage the welding work for each welding device 101 based on the measurement information transmitted from each of the plurality of magnetic sensors 111. ..

Further, with the configuration for calculating the welding amount of the welding material M, it is possible to calculate the production cost of the product and evaluate the quality of the product based on the welding amount of the welding material M, for example.

Further, in the management device 201 according to the embodiment of the present invention, the acquisition unit 11 acquires the measurement information indicating the measurement result by the magnetic sensor 111 installed in the power cable 51 that connects the power supply device 131 and the welding device 101. To do.

As described above, the magnetic sensor 111 is installed in the power cable 51 for supplying electric power to the welding apparatus 101, so that the magnetic field generated by the direct current supplied to the welding apparatus 101 is accurately measured, and management regarding welding work is performed. Can be done more accurately.

Further, the sensor installation method in the management system 301 according to the embodiment of the present invention includes the steps of preparing the magnetic sensor 111 and the management device 201, and the magnetic sensor 111 on the power cable 51 connecting the power supply device 131 and the welding device 101. And installing.

With such a method, the magnetic sensor 111 can be retrofitted to the power cable 51 regardless of the diameter and type of the power cable 51. That is, regardless of the type and number of welding devices 101 to which the power cable 51 is connected, the magnetic sensor 111 can be installed in association with the welding device 101. Therefore, regardless of the type and number of the installed welding apparatuses 101, it is possible to manage the welding work.

Further, when the plurality of welding devices 101 and the plurality of magnetic sensors 111 are provided, it is possible to manage the welding work for each welding device 101 based on the measurement information transmitted from each of the plurality of magnetic sensors 111. ..

Further, the magnetic sensor 111 is installed on the power cable 51 for supplying electric power to the welding apparatus 101, so that the magnetic field generated by the direct current supplied to the welding apparatus 101 is accurately measured, and the management of the welding work is further improved. Can be done accurately.

Note that the management device 201 according to the embodiment of the present invention is not limited to a configuration that performs processing relating to welding work, and is, for example, a device of a type other than the welding device 101 and driven by a current supplied through a cable. It is possible to perform processing relating to the device.

Specifically, the management device 201 acquires the measurement information indicating the measurement result of the magnetic field generated by the current flowing through the cable, and determines whether the current is flowing through the cable based on the acquired measurement information. Then, the management device 201 can manage the operating status of the device driven by the current supplied through the cable, based on the determination result. The management device 201 can also predict the failure time of the device based on the operating status of the device, for example.

Note that some or all of the functions of the management device 201 according to the embodiment of the present invention may be provided by cloud computing. That is, at least one of the management devices 201 may be configured by a plurality of cloud servers and the like.

It should be considered that the above-described embodiments are illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description but by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

The above description includes the features described below.

[Appendix 1]
A magnetic sensor provided corresponding to the welding device,
With a management device that performs processing related to welding work,
The magnetic sensor measures a magnetic field generated by a current flowing through a cable connected to the welding device, and transmits measurement information indicating a measurement result to the management device,
The management device receives the measurement information transmitted from the magnetic sensor, performs the process based on the received measurement information,
The magnetic sensor can be locally installed in the circumferential direction of the cable,
The welding device is a semi-automatic welding machine or a coated arc welding machine,
The cable is a power cable for supplying a direct current to the welding device,
A plurality of the welding devices and the magnetic sensors are provided,
The management device, based on the plurality of measurement information respectively transmitted from the plurality of magnetic sensors, performs a process related to welding work for each welding device, and outputs the process result in a recognizable manner,
The management system in which the plurality of cables respectively connected to the plurality of welding devices have different diameters.

[Appendix 2]
An electric current flowing through the cable connected to the welding device, and an acquisition unit that acquires measurement information indicating the measurement result of the magnetic field generated by the
Based on the measurement information acquired by the acquisition unit, calculates the current value of the current, based on the calculated current value, a processing unit that calculates the welding material welding amount,
An output unit that outputs the processing result of the processing unit in a recognizable manner,
The welding device is a semi-automatic welding machine or a coated arc welding machine,
The cable is a power cable for supplying a direct current to the welding device,
A plurality of the welding devices are provided,
The acquisition unit acquires a plurality of the measurement information respectively corresponding to the plurality of welding devices,
The processing unit, based on the plurality of measurement information acquired by the acquisition unit, performs a process related to welding work for each welding device,
The management device in which the plurality of cables respectively connected to the plurality of welding devices have different diameters.

11 acquisition unit 12 processing unit 13 storage unit 14 output unit 21 sensor unit 22 processing circuit 51 power cable 52 control cable 53 gas cable 54 welding cable 55 grounding cable 61 conductive wire 65 band 101 welding device 111 magnetic sensor 121 welding torch 122 Gas cylinder 131 Power supply device 151 Access point 201 Management device 202 Terminal device 301 Management system 401 Internal network

Claims (12)

A magnetic sensor provided corresponding to the welding device,
With a management device that performs processing related to welding work,
The magnetic sensor measures a magnetic field generated by a current flowing through a first cable connected to the welding device, and transmits measurement information indicating a measurement result to the management device,
The management device receives the measurement information transmitted from the magnetic sensor, performs the process based on the received measurement information,
The magnetic sensor Ri locally installable der in the circumferential direction of the first cable,
The first cable connects a power supply device and the welding device,
A second cable is provided, which connects the welding device and the welding torch and accommodates a plurality of cables including a power supply cable that transmits power from the power supply device via the first cable,
The first cable is a power cable that transmits power from the power supply device ,
The management device, based on the measurement information, as the process, calculates a current value of the current,
The said management apparatus is a management system which calculates the welding amount of a welding material further as said process based on the said electric current value . The management device, the type of linear the welding material, the diameter of the weld material, and on the basis of the current value, to calculate the deposition rate, the management system of claim 1. The management device, the type, the size of the diameter, and on the basis of the current value, the specified welding speed of welding materials, and calculates the deposition amount based on the identified the deposition speed, claim 2 Management system described in. A magnetic sensor provided corresponding to the welding device,
With a management device that performs processing related to welding work,
The magnetic sensor measures a magnetic field generated by a current flowing through a first cable connected to the welding device, and transmits measurement information indicating a measurement result to the management device,
The management device receives the measurement information transmitted from the magnetic sensor, performs the process based on the received measurement information,
The magnetic sensor Ri locally installable der in the circumferential direction of the first cable,
The first cable connects a power supply device and the welding device,
A second cable is provided, which connects the welding device and the welding torch, and accommodates a plurality of cables including a power supply cable that transmits power from the power supply device via the first cable,
The first cable is a power cable for transmitting electric power from the power supply device ,
The management device, based on the measurement information, as the process, calculates a current value of the current,
A management system in which the management device further specifies a welding posture of an operator as the process based on the current value . An electric current flowing through the cable connected to the welding device, and an acquisition unit that acquires measurement information indicating the measurement result of the magnetic field generated by the
A management device comprising: a processing unit that calculates a current value of the current based on the measurement information acquired by the acquisition unit, and calculates a welding amount of welding material based on the calculated current value. The management device according to claim 5 , wherein the acquisition unit acquires the measurement information indicating the measurement result by the magnetic sensor installed in the cable that connects the power supply device and the welding device. A magnetic sensor provided corresponding to the welding device,
With a management device that performs processing related to welding work,
The magnetic sensor measures a magnetic field generated by a current flowing through a first cable connected to the welding device, and transmits measurement information indicating a measurement result to the management device,
The management device receives the measurement information transmitted from the magnetic sensor, performs the process based on the received measurement information,
The magnetic sensor can be locally installed in a circumferential direction of the first cable,
The first cable connects a power supply device and the welding device,
A second cable is provided, which connects the welding device and the welding torch and accommodates a plurality of cables including a power supply cable that transmits power from the power supply device via the first cable,
The management device, based on the measurement information, as the process, calculates a current value of the current,
The said management apparatus is a management system which calculates the welding amount of a welding material further as said process based on the said electric current value. A magnetic sensor provided corresponding to the welding device,
With a management device that performs processing related to welding work,
The magnetic sensor measures a magnetic field generated by a current flowing through a first cable connected to the welding device, and transmits measurement information indicating a measurement result to the management device,
The management device receives the measurement information transmitted from the magnetic sensor, performs the process based on the received measurement information,
The magnetic sensor can be locally installed in a circumferential direction of the first cable,
The first cable connects a power supply device and the welding device,
A second cable is provided, which connects the welding device and the welding torch and accommodates a plurality of cables including a power supply cable that transmits power from the power supply device via the first cable,
The management device, based on the measurement information, as the process, calculates a current value of the current,
A management system in which the management device further specifies a welding posture of an operator as the process based on the current value. A magnetic sensor provided corresponding to the welding device,
A sensor installation method in a management system including a management device that performs a process related to a welding operation based on a measurement result by the magnetic sensor,
A first cable is provided for connecting a power supply device and the welding device,
A second cable is provided, which connects the welding device and the welding torch and accommodates a plurality of cables including a power supply cable that transmits power from the power supply device via the first cable,
The management device calculates a current value of a current flowing through the first cable as the process based on the measurement result,
The management device, based on the current value, as the process, further calculates the welding amount of the welding material,
Preparing the magnetic sensor and the management device;
Installing the magnetic sensor locally in the circumferential direction of the first cable. A magnetic sensor provided corresponding to the welding device,
A sensor installation method in a management system including a management device that performs a process related to a welding operation based on a measurement result by the magnetic sensor,
A first cable is provided for connecting a power supply device and the welding device,
A second cable is provided, which connects the welding device and the welding torch, and accommodates a plurality of cables including a power supply cable that transmits power from the power supply device via the first cable,
The management device calculates a current value of a current flowing through the first cable as the process based on the measurement result,
The management device, based on the current value, as the process, identifies the welding posture of the worker,
Preparing the magnetic sensor and the management device;
Installing the magnetic sensor locally in the circumferential direction of the first cable. A management method in a management device that performs processing relating to welding work,
A step of acquiring measurement information indicating the measurement result of the magnetic field generated by the current flowing through the cable connected to the welding device,
Calculating a current value of the acquired current,
Calculating a welding material deposition amount based on the calculated current value. A management program used in the management device,
Computer,
An electric current flowing through the cable connected to the welding device, and an acquisition unit that acquires measurement information indicating the measurement result of the magnetic field generated by the
Based on the measurement information acquired by the acquisition unit, calculates the current value of the current, based on the calculated current value, a processing unit that calculates the welding amount of the welding material,
Management program to function as.

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