CN114002590B - Travel switch detection method and system - Google Patents
Travel switch detection method and system Download PDFInfo
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- CN114002590B CN114002590B CN202010737930.0A CN202010737930A CN114002590B CN 114002590 B CN114002590 B CN 114002590B CN 202010737930 A CN202010737930 A CN 202010737930A CN 114002590 B CN114002590 B CN 114002590B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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Abstract
The invention relates to a travel switch detection method and a travel switch detection system, and relates to the technical field of travel switch detection, wherein the method comprises the following steps: collecting initial state data of a switch to be detected, wherein the initial state data comprises: the identification and the opening and closing information of the switch to be detected; generating a test instruction according to the initial state data; the test instruction is sent to a controller corresponding to the switch to be detected; and receiving a detection result from a detector corresponding to the switch to be detected, and displaying the detection result. The technical scheme provided by the invention can improve the detection efficiency of the travel switch.
Description
Technical Field
The invention relates to the technical field of travel switch detection, in particular to a travel switch detection method and system.
Background
At present, a travel switch is generally adopted by equipment to detect the action conditions of various mechanisms, so that ensuring the running state of the travel switch is a necessary condition for maintaining the running of the equipment.
The current common travel switch state checking method is to confirm the current position by direct observation of personnel, and the position which is not easy to observe is usually completed by consuming a large amount of manpower and material resources. The other mode is to perform inspection by arranging the indicator lights, which can solve the problem that part of inspection of the state of the position is inconvenient to observe, but in many cases, only part of key signal indicator lights are usually arranged in consideration of the factors such as complex wiring, increased cost and the like, and the rest of the key signal indicator lights still need to be observed manually.
However, the above method requires a long time for cooperation of a plurality of persons, which is very time-consuming and labor-consuming, thereby reducing the efficiency of detecting the travel switch.
Disclosure of Invention
In view of the above analysis, the present invention is directed to a method and a system for detecting a travel switch, so as to improve the efficiency of detecting the travel switch.
The aim of the invention is mainly realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a method for detecting a travel switch, including:
collecting initial state data of a switch to be detected, wherein the initial state data comprises: the identification and the opening and closing information of the switch to be detected;
generating a test instruction according to the initial state data;
the test instruction is sent to a controller corresponding to the switch to be detected;
and receiving a detection result from a detector corresponding to the switch to be detected, and displaying the detection result.
Further, the generating a test instruction according to the initial state data includes:
determining whether the switch to be detected is closed or not according to the opening and closing information of the switch to be detected;
and when the switch to be detected is closed, generating a first test instruction according to the identification of the switch to be detected.
Further, the controller corresponding to the switch to be detected firstly opens the switch to be detected according to the first test instruction, and then closes the switch to be detected.
Further, when the switch to be detected is disconnected, a second test instruction is generated according to the identification of the switch to be detected.
Further, the controller corresponding to the switch to be detected firstly closes the switch to be detected according to the second test instruction, and then opens the switch to be detected.
Further, a virtual key associated with the test instruction is generated and presented.
Further, after the virtual key is triggered, the test instruction is sent to a controller corresponding to the switch to be detected.
Further, receiving identification and state information of target equipment from the detector, wherein the target equipment is matched with the switch to be detected, and the state information of the target equipment is associated with the closing or opening of the switch to be detected;
determining a criterion corresponding to the switch to be detected according to the identification of the target equipment; and determining whether the performance of the switch to be detected is normal or not according to the criterion and the state information.
Further, displaying the switch identification, the switch state information and the virtual key of the switch to be detected; wherein the switch state information includes: one or more of switch open, switch closed, switch normal, and switch failure.
In a second aspect, an embodiment of the present invention provides a travel switch detection system, including: a controller, a detector and a travel switch detection device for performing the method of any one of the first aspects;
the controller is used for receiving the test instruction sent by the travel switch detection device;
the detector is used for detecting the switch to be detected based on the test instruction to obtain a detection result, and sending the detection result to the travel switch detection device.
The technical scheme of the invention has the beneficial effects that: the invention discloses a travel switch detection method and a travel switch detection system. Therefore, the staff is not required to check all travel switches, and the workload of the staff is reduced. Meanwhile, by setting the virtual keys on the display interface, a worker does not need to manually input detection instructions, and the detection strategy can be flexibly adjusted. In addition, the technical scheme provided by the invention does not need to modify the circuit of the equipment, thereby further saving manpower and cost.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a flow chart of a method for detecting a travel switch provided by the invention;
fig. 2 is a schematic structural diagram of an interface for displaying a detection result of a travel switch according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a travel switch detection device provided by the invention;
fig. 4 is a schematic structural diagram of a travel switch detection system provided by the invention.
Detailed Description
Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and together with the description serve to explain the principles of the invention, and are not intended to limit the scope of the invention.
Travel switches are widely used in equipment design and are a common means of detecting a bit signal. In use, it is often necessary to know where the current travel switch is, to control the mechanism to perform the next action, and it is difficult for some travel switches to obtain position information by observation due to the limitation of the installation position. The motion of the travel switch is related to the motion, the motion control is easy to be out of control after the travel switch is damaged, equipment damage or personnel injury can be caused when the travel switch is serious, and therefore the real-time grasping of the position information and the fault information of the travel switch is very important.
In particular applications, the travel switch typically detects the bit signal as a touch sensor. The working process is that the control module drives the mechanism to act, the movement of the mechanism can lead to the action of the travel switch after reaching the position, the signals can change after the action of the travel switch, the common signal mode is that the normally open is changed into the normally closed mode, or the normally closed is changed into the normally open mode, and the signals are correspondingly processed after being collected by the computer. For example, on some equipment, a march lock signal is provided with two switches for position detection. Before the equipment is unfolded, the unlocking action is required to be completed, the unlocking in-place switch state is changed from normally open to normally closed, and after a computer detects a normally closed signal, the equipment can conduct the unfolding action; before equipment is transported, locking action is required to be completed, the in-place locking switch is changed from normally open to normally closed, and transportation operation can be performed after a computer detects a normally closed signal. If the travel switch fails, detection errors can be caused, and equipment damage or transportation potential safety hazards are brought.
In normal cases, the travel switch can be observed manually or by installing an indicator lamp, but the following three cases cannot be realized by the method:
1. the device is oversized. In the embodiment of the invention, the application scene of the travel switch is mostly large equipment. A person viewing a thing is typically at a fixed angle and thus the field of view of the staff is limited. If any one or more of the length, width and height of the whole device or the device parts exceeds the visual field range of the staff, manual detection can lead to the staff moving around the device, even if the device is moved or climbed, the working efficiency is reduced, and even potential safety hazards exist. If the indicator lamp passes through, the line needs to be modified to set the indicator lamp at a place where workers can easily see the object, and a great deal of time and resources are wasted.
2. The apparatus has a complicated structure. The travel switch may be provided inside the device to prevent collision between the devices. At this time, if manual inspection is adopted, the worker must disassemble a part of the device, and in the disassembly process, besides wasting time, other uncertain risks such as poor contact, line damage and the like are caused by misoperation of the worker. If the indicator lamp is adopted, the improvement of the circuit is necessarily involved, and the improvement of the circuit of the equipment with a complex structure is likely to take a lot of time, so that the cost of enterprises is increased.
3. The apparatus has stringent operating conditions. For some precision instruments, it is common to have unique working conditions such as oxygen-free, low temperature, light-shielding, dust-shielding, etc. These operating conditions usually set the travel switch in a relatively closed and parameter-stable context, and these conditions are usually set at the factory of the device, and if manual detection is used, it is likely that the closed environment will be destroyed, or even the parameters will be changed, by improper disassembly, resulting in reduced precision of the device. And once the setting indicator lamp relates to line transformation, the condition can increase difficulty for line transformation.
In order to solve the above problems, an embodiment of the present invention provides a method for detecting a travel switch, as shown in fig. 1, including the following steps:
and step 101, collecting initial state data of a switch to be detected.
The electrical device will typically have its own travel switch detection means. Therefore, in the embodiment of the invention, the initial state data is directly obtained from the travel switch detection device on the electrical equipment, so that the line transformation is avoided, and the initial state data comprises: the identification and the opening and closing information of the switch to be detected.
Step 102, generating a test instruction according to the initial state data.
In the embodiment of the invention, different scenes corresponding to different test instructions are provided. For the travel switch, it is detected not only whether the travel switch can execute a command but also whether the travel switch has good sensitivity. Therefore, in the embodiment of the present invention, the detection strategy is to detect whether the travel switch can send out a correct response signal.
Specifically, whether the switch to be detected is closed or not is determined according to the opening and closing information of the switch to be detected. When the switch to be detected is closed, a first test instruction is generated according to the identification of the switch to be detected. And then, the controller corresponding to the switch to be detected firstly opens the switch to be tested according to the first test instruction, and then closes the switch to be tested. And finally, acquiring the state data of the switch to be tested after closing.
When the switch to be detected is disconnected, a second test instruction is generated according to the identification of the switch to be detected, and after the second test instruction is generated by the controller corresponding to the switch to be detected, the switch to be detected is firstly closed, and then the switch to be detected is disconnected. And finally, acquiring the state data of the switch to be tested after closing.
For large-sized, complex-structured and working-condition-strict devices, it is sometimes necessary to mutually cooperate a plurality of elements to achieve a specific function. At this time, the mutual cooperation between the elements should be considered when testing the performance of the travel switch. In the embodiment of the invention, firstly, the identification and the state information of the target equipment from the detector are received, wherein the target equipment is matched with the switch to be detected, and the state information of the target equipment is associated with the closing or opening state of the switch to be detected. For example, a lift-in-place switch (switch to be detected) cooperates with a hydraulic mechanism (target device) to prevent the hydraulic mechanism from colliding with other devices during movement.
And secondly, determining a criterion corresponding to the switch to be detected according to the identification and the state information of the target equipment. Specifically, before testing, the performance of the in-place switch cannot be determined by a worker, once the performance of the in-place switch is not satisfactory, and conventional operation is adopted in the testing process, the hydraulic mechanism can directly collide with other equipment, so that immeasurable loss is caused. Therefore, the staff needs to set criteria to ensure that the testing process is performed safely.
In the embodiment of the invention, the criterion is set according to the matching mode of the travel switch and the target equipment. However, the range switch has wide application scenes, and the target equipment matched with the range switch and the corresponding matching modes are different. The matching mode of the travel switch and the target equipment is mainly determined by the working mode and the operation parameters of the target equipment, so that the specific working mode and the operation parameters of the target equipment are represented by the identification of the target equipment, and the corresponding relation between the identification of the target equipment and the criteria is established. For example, when the lifting in-place switch is matched with the hydraulic mechanism, the hydraulic mechanism moves on a preset track, and when the lifting switch is closed, the hydraulic mechanism is close to the lifting switch; when the lifting switch is disconnected, the hydraulic mechanism is far away from the lifting switch. According to the mode, the criterion when the lifting switch is matched with the hydraulic mechanism can be set to be whether lifting switch receipt information sent by the detection equipment is received within the preset time. And storing the hydraulic mechanism identification corresponding to the criterion so as to call the corresponding relation during testing.
And finally, determining whether the performance of the switch to be detected is normal or not according to the criterion and the state information. For example, the criterion is whether the overrun switch acts when the angle is larger than 85 degrees, and the angle corresponding to the hydraulic mechanism is state information. If the data returned by the detector show that the corresponding angle of the hydraulic mechanism is larger than 85 degrees, the overrun switch fails; if the data returned by the detector shows that the corresponding angle of the hydraulic mechanism does not exceed 85 degrees, the overrun switch operates normally.
It should be noted that, for a specific target device, the state information of the target device is fixed, for example, when the lifting-in-place switch is matched with the hydraulic mechanism, the hydraulic mechanism is required to move on a preset track, and in general, the hydraulic mechanism returns to its initial position after the hydraulic mechanism performs the action. During testing, the hydraulic mechanism is operated according to a normal working mode. Thus, the criteria may be determined based solely on the identity of the target device.
However, in the event of a sudden failure, the position of the hydraulic machine on the rail is uncertain. In this case, accidents may be initiated if the test is done in a conventional manner. Therefore, it is necessary to determine whether the target device can operate in a conventional manner based on the state information of the target device, and if the failure to operate in a conventional manner means that the operation mode thereof is changed, the corresponding criterion is also modified. In particular, depending on the position of the hydraulic machine, it may be determined whether the hydraulic machine is in a position that is about to strike other devices. If this is the case, the test will either slow down the movement of the hydraulic mechanism or will first move the hydraulic mechanism a distance away from the lift-to-position switch and then move it closer to the lift-to-position switch to ensure that the hydraulic mechanism will not collide with other equipment in the event that the performance of the lift-to-position switch is indeterminate. If the criterion corresponding to the lifting switch is that the detection equipment receives the receipt signal or the action signal sent by the lifting switch within 5s under normal conditions, the criterion corresponding to the lifting switch should be adjusted to be that the detection equipment receives the receipt signal or the action signal sent by the lifting switch within 6-10s under the above conditions.
Step 103, sending the test instruction to a controller corresponding to the switch to be detected.
The electrical equipment typically has its own switch control. Therefore, in the embodiment of the invention, the test instruction is directly sent to the switch control device on the electrical equipment, and then the switch control device on the electrical equipment completes the test, so that the line transformation is avoided.
Step 104, receiving a detection result from a detector corresponding to the switch to be detected, and displaying the detection result.
In the embodiment of the invention, in order to improve user experience, virtual keys are generated and displayed on an interface for displaying results, and the virtual keys are associated with test instructions. Specifically, after the virtual key is triggered, a test instruction is sent to a controller corresponding to the switch to be detected. As shown in fig. 2, the rightmost column is a virtual key. The other three columns are the names and states of the switches, and for a travel switch, each switch state includes four states of in-place, out-of-place, normal, and failed. The in-place and out-of-place states show white, green and red.
By setting the virtual key, an operator can adjust the detection strategy in real time according to the state of the left switch, for example, the switch 1, the switch 2 and the switch 3 can be detected simultaneously or the switch 1, the switch 2 and the switch 3 can be detected sequentially according to the sequence in fig. 2. In addition, because the test instruction is obtained according to the circuit information, the staff can input the test instruction without editing the test instruction and touching the virtual key, thereby improving the user experience of the staff.
Compared with the prior art, in the embodiment of the invention, the running state of the travel switch is intuitively displayed to a user through a visual display mode. Therefore, the staff is not required to check all travel switches one by one, and the workload of the staff is reduced. Meanwhile, by setting the virtual keys on the display interface, a worker does not need to manually input detection instructions, and the detection strategy can be flexibly adjusted. In addition, the controller and the detector in the embodiment are self-contained in the electrical equipment, so that the circuit of the equipment is not required to be modified, and the labor and the cost are saved. It should be noted that, the functions of the controller and the detector may be implemented by a program, so when the electrical device lacks the controller or the detector, some programs may be added to the system of the original device, thereby forming a control module and a detection module. In summary, the technical scheme provided by the invention can realize detection of the travel switch without changing factory settings, modifying circuits and even disassembling parts.
As shown in fig. 3, an embodiment of the present invention provides a travel switch detection apparatus, including: the device comprises an acquisition module 301, an instruction generation module 302, a transmission module 303 and a display module 304;
the acquisition module 301 is configured to acquire initial state data of a switch to be detected, where the initial state data includes: the identification and the opening and closing information of the switch to be detected;
the instruction generating module 302 is configured to generate a test instruction according to the initial state data;
the sending module 303 is configured to send the test instruction to a controller corresponding to the switch to be detected;
the display module 304 is configured to receive a detection result from the detector corresponding to the switch to be detected, and display the detection result.
It should be noted that the travel switch detection apparatus may perform any of the methods described in the embodiments of the present invention.
As shown in fig. 4, an embodiment of the present invention provides a travel switch detection system, including: a controller 401, a detector 402 and a travel switch detection means 403. The controller 401 and the detector 402 may be devices of entities in the electrical device, or may be a program newly added by a user to implement the method provided by the embodiment of the present invention.
Those skilled in the art will appreciate that implementing all or part of the processes of the methods in the above embodiments may be accomplished by computer programs to instruct related hardware, and that the programs may be stored in a computer readable storage medium. Wherein the computer readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory, etc.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. A travel switch detection method, comprising:
collecting initial state data of a switch to be detected, wherein the initial state data comprises: the identification and the opening and closing information of the switch to be detected;
generating a test instruction according to the initial state data;
the test instruction is sent to a controller corresponding to the switch to be detected;
receiving identification and state information of target equipment from a detector, wherein the target equipment is matched with the switch to be detected, and the state information of the target equipment is associated with the closing or opening of the switch to be detected; determining a criterion corresponding to the switch to be detected according to the identification of the target equipment; determining whether the performance of the switch to be detected is normal or not according to the criterion and the state information;
and receiving a detection result from a detector corresponding to the switch to be detected, and displaying the detection result.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the generating a test instruction according to the initial state data comprises the following steps:
determining whether the switch to be detected is closed or not according to the opening and closing information of the switch to be detected;
and when the switch to be detected is closed, generating a first test instruction according to the identification of the switch to be detected.
3. The method according to claim 2, wherein the method further comprises:
and the controller corresponding to the switch to be detected firstly opens the switch to be detected according to the first test instruction and then closes the switch to be detected.
4. The method according to claim 2, wherein the method further comprises:
and when the switch to be detected is disconnected, generating a second test instruction according to the identification of the switch to be detected.
5. The method according to claim 4, wherein the method further comprises:
and the controller corresponding to the switch to be detected firstly closes the switch to be detected according to the second test instruction, and then opens the switch to be detected.
6. The method of claim 1, wherein after the generating the test instruction, the method further comprises:
and generating a virtual key associated with the test instruction and displaying the virtual key.
7. The method of claim 6, wherein the method further comprises:
and after the virtual key is triggered, sending the test instruction to a controller corresponding to the switch to be detected.
8. The method of any one of claims 6 or 7, wherein said displaying the test results comprises:
displaying a switch identifier, switch state information and the virtual key of the switch to be detected; wherein the switch state information includes: one or more of switch open, switch closed, switch normal, and switch failure.
9. A travel switch detection system, comprising: a controller, a detector and a travel switch detection device for performing the method of any one of claims 1-8;
the controller is used for receiving the test instruction sent by the travel switch detection device;
the detector is used for detecting the switch to be detected based on the test instruction to obtain a detection result, and sending the detection result to the travel switch detection device.
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| CN202010737930.0A CN114002590B (en) | 2020-07-28 | 2020-07-28 | Travel switch detection method and system |
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