JP2003151062A - Radio telemeter device and radio telemeter system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio telemeter device capable of being stably operated by efficiently mounting a radio master machine and a radio slave machine at positions of a high receiving level. SOLUTION: This radio telemeter device is composed of the radio master machine 10 connected to a host computer 111 through a terminal-side network controller 113, a communication line and a center-side network controller 112, and one or more radio slave machines 25a-25n wirelessly connected to the radio master machine 10 and respectively connected to microcomputer meters 114a-114n, the radio master machine 10 and the radio slave machines 25a-25n are respectively provided with a radio transmission part 13 for data communication with the mating machine, a control part 11 for reading out a receiving level outputted from the radio communication part 13, and a storage part 17 for storing the read out receiving level as a receiving level measurement value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless telemeter device including a wireless master device and a wireless slave device, and a wireless telemeter system including the wireless telemeter device and a host computer.

[0002]

2. Description of the Related Art FIG. 19 is a block diagram of a conventional wireless telemeter system developed for meters such as gas and water. This is a wireless telemeter system conforming to the standard RCR STD-T67. This wireless telemeter system includes a center side network control unit (hereinafter, referred to as center NCU) 112 connected to a host computer 111,
Terminal network control unit (hereinafter referred to as T-NCU) 113 connected to the center NCU 112 via a public telephone line 113
, A wireless master device (hereinafter referred to as main) 10 that is wire-connected to the T-NCU 113, and one or more wireless slave devices (hereinafter referred to as sub) 25a to 2 that are wirelessly connected to the main 10.
5n and a microcomputer meter (hereinafter referred to as a meter) 11 for electricity, gas, water, etc. wiredly connected to the subs 25a to 25n
4a to 114n.

[0003]

Here, since the main 10 and one or more subs 25a to 25n perform radio data communication by radio waves, the surrounding environment, for example, the influence of an amateur radio or the like, a person or a vehicle moves. Due to the influence, the data efficiency may occur frequently and the communication efficiency may be significantly reduced.

Therefore, when the main 10 and the sub 25 are installed, it is desirable to install them in a place where the reception level is as high as possible. However, since the installation places vary widely and there are many invisible elements. At first glance, it is not possible to determine a place with a high reception level. Therefore, there was no problem in communication at the time of installation because the installation position was decided empirically,
There were some cases where communication errors occurred frequently when system operation started.

In view of the above problems, the present invention efficiently arranges a wireless master device and a wireless slave device at positions with high reception levels,
It is an object of the present invention to provide a wireless telemeter device capable of stable operation. It is also an object to provide a wireless telemeter system including the wireless telemeter device and a host computer.

[0006]

In order to achieve the above object, a wireless telemeter device according to the present invention is connected to a host computer via a terminal side network control device, a communication line, and a center side network control device. In a wireless telemeter device comprising a wireless master unit and one or more wireless slave units wirelessly connected to the wireless master unit and each having a microcomputer meter connected thereto, the wireless master unit and the wireless slave unit are respectively A wireless unit that performs data communication with the other device, a control unit that reads the reception level output from the wireless unit, and a storage unit that stores the read reception level as a reception level measurement value. .

As described above, by measuring the reception level between the wireless master unit and the wireless slave unit, the wireless master unit and the wireless slave unit can be efficiently arranged at a position where the reception level is high, and stable operation is possible. A wireless telemeter device can be provided.

It should be noted that the reception level may be measured by using two channels having different frequencies, and if one channel cannot be received, the other channel may be switched to measure the reception level.

Thus, for example, when both channels can be received, a radio telemeter system capable of stable operation can be provided by comparing the reception levels and using the channel with the higher reception level. . Further, even when one channel cannot be received, the other receivable channel can be used.

For measuring the reception level, two channels having different frequencies are used, and when one channel cannot be received, the other channel is switched to receive the radio wave, and the radio wave is received by the radio telemeter device. In the case of the radio wave related to, the reception level may be measured. As a result, since only the radio wave of the telemeter device can be measured, erroneous measurement can be eliminated.

Whether or not the radio wave is a radio wave relating to the present telemeter device can be determined by the ID of the sender, the system ID, or the ID of the receiver in the data of the radio wave.

Further, in the above-mentioned wireless telemeter device, either the wireless master unit or the wireless slave unit has a signal input section, and when there is an input in the signal input section, a reception level measurement message is transmitted to the partner unit. However, the other device that has received the reception level measurement message may measure the reception level and display the result. As a result, the reception level can be easily measured by the signal input unit such as a switch.

In the above-mentioned wireless telemeter device, either the wireless master unit or the wireless slave unit has a signal input section, and when there is an input in the signal input section, a reception level measurement message is transmitted to the partner unit. However, the partner device receiving the reception level measurement message measures the reception level and, if it is necessary to transmit the response message, the response message including the measured reception level measurement data and the reception level measurement data. May be transmitted and either the wireless master device or the wireless slave device that has received the response message may measure the reception level and display the result together with the reception level measurement data.

As a result, at the time of installing the present wireless telemeter device, the operator can display the reception level measurement value on the wireless device only by operating either the wireless master device or the wireless slave device. The work efficiency is improved because there is no need to move between the wireless master device and the wireless slave device.

Further, in the above-mentioned wireless telemeter device, either the wireless master unit or the wireless slave unit that has received a reception level measurement instruction message from a setting device capable of communicating with the wireless master unit or the wireless slave unit, When it is necessary to send the reception level measurement message to the other device and receive the reception level measurement message, the other device measures the reception level and, if it is necessary to send the response message, the measured reception level measurement data and the reception level. A response message including measurement data is transmitted, and either the wireless master device or the wireless slave device that receives the response message measures a reception level, and the measurement result is measured together with the reception level measurement data. You may make it transmit to a setter.

As described above, by using the setting device for measuring the reception level, it is not necessary to provide a display unit such as an LED or a signal input unit such as a switch in the wireless telemeter device, so that the cost can be reduced. it can.

Further, in the above-mentioned wireless telemeter device, the wireless master unit which receives the reception level measurement instruction message from the host computer transmits the reception level measurement message to the wireless slave unit and receives the reception level measurement message. The wireless slave device measures the reception level, and when it is necessary to transmit the response message, it transmits the response message including the measured reception level measurement data and the reception level measurement data,
The wireless master device that has received the response message may measure the reception level and send the measurement result to the host computer together with the reception level measurement data.

As described above, by using the host computer for measuring the reception level, it is possible to remotely operate the host computer without visiting the installation site again for the purpose of confirming the radio wave environment after installing the wireless telemeter device. The reception level can be measured with.

In the above wireless telemeter device, the wireless base unit is temporarily installed, the reception level is measured using a reception level measuring instrument having a reception level measuring function, and the wireless slave unit is located at a receivable position. May be installed.

As a result, the work of temporarily installing the radio telemeter device and measuring the reception level is not required, and the work efficiency is dramatically improved. Furthermore, even if there is only one worker at the time of installation, the reception level can be measured without moving between the wireless master device and the wireless slave device that are located at a remote place, and the efficiency of the installation work can be improved. .

Further, in the above-mentioned wireless telemeter device, the wireless master unit measures the reception level with all the wireless slave units at a preset time or interval, and outputs the measured reception level measurement value. You may make it memorize | store in the said memory | storage part.

By analyzing the stored reception level measurement value by the host computer, the communication condition depending on the time zone is calculated. Therefore, by operating the present wireless telemeter device while avoiding the calculated time zone in which the communication condition is bad, it is possible to provide the wireless telemeter device capable of stable operation.

Further, in the above-described wireless telemeter device, the wireless master device measures a reception level with the designated wireless slave device at a preset time or interval, and outputs the measured reception level measurement value. It may be stored in the storage unit of the wireless master device.

As a result, the wireless master device can measure the reception level only between the designated wireless slave devices, so that it is efficient to specify only the wireless slave device which is considered to have a large time variation in the measured value of the reception level. Data collection is possible.

Further, in the above-mentioned wireless telemeter device, the wireless slave unit measures a reception level with the wireless master unit at a preset time or interval, and the measured reception level measurement value is used by the wireless unit. You may make it memorize | store in the memory | storage part of a subunit | mobile_unit.

By storing the measurement data in the storage unit of each wireless slave unit, it is not necessary to centrally manage the measurement data of a plurality of wireless slave units in the storage unit of the wireless master unit. The pressure can be avoided.

Further, the wireless telemeter system of the present invention includes any one of the above wireless telemeter devices, a microcomputer meter connected to each wireless slave device of the wireless telemeter device, and a wireless master device of the wireless telemeter device. It is composed of a connected terminal side network control device, a center side network control device connected to the terminal side network control device via a communication line, and a host computer connected to the center side network control device.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION Since the configuration of the wireless telemeter system of the present invention can adopt the conventional configuration of FIG. 19, it will be described below with reference to FIG. The main 10 and the subs 25a to 25n may be collectively referred to as a radio device.

FIG. 1 is a block diagram showing the configuration of the main 10. The main 10 includes a microcomputer 11 for controlling the main 10, a T-NCU interface 12 connected to the T-NCU 113, a wireless unit 13 for data communication with the subs 25a to 25n, and an antenna 14 connected to the wireless unit.
And the wireless unit 13 and the microcomputer 11 are connected to connect the wireless unit 13 to each other.
The control line 15 for controlling the radio unit 13 and the wireless unit 13 and the microcomputer 11 are connected to each other, and the sub units 25a to 25
The reception level line 16 that outputs the reception level measurement value with n as a voltage value, the non-volatile memory 17 or the RAM 18 that stores the reception level measurement value, the ROM 19 that stores the operation program of the main 10 and the like, the reception level, etc. And a signal input unit 21 including a switch and the like.
And a battery 22 serving as a power source for the main 10.

FIG. 2 is a block diagram showing the configuration of the sub 25. The sub 25 is a meter 11 for electricity, gas, water, etc.
4 has a meter interface 26 connected thereto. Since other configurations are similar to those of the main 10 in FIG. 1, the same reference numerals are given and detailed description thereof will be omitted.

FIG. 3 is a flow chart showing the operation when the radio device which is the main 10 or the sub 25 measures the reception level. Two channels are used wirelessly, one wireless channel is called a main CH, and the other is called a sub-CH.

First, in step S30, as a preparation for measuring the reception level, the radio unit 13 is set to the main C.
Set to H. Next, the process proceeds to step S31, and it is measured for a certain time whether the target (main CH) radio wave can be received. If the target radio wave can be received in step S31, the process proceeds to step S32, the radio wave reception level (strength) is converted into a voltage value, and the voltage value is sent to the microcomputer 11 via the reception level line 16. Stores the reception level in the non-volatile memory 17 or the RAM 18.

On the other hand, if the target radio wave cannot be received in step S31, the process proceeds to step S33, and it is determined whether or not the radio channel is set to the sub-CH. If the sub-CH is not set in step S33, the process proceeds to step S34 to set the sub-CH, and the process proceeds to step S31 again to measure whether the radio wave of the target (sub-CH) can be received for a certain period of time. On the other hand, if the sub CH has been set, the process returns to step S30 to set the main CH again. That is, the reception level is measured by switching the radio channel of the radio unit 13 between two target radio waves.

Thus, for example, when both channels can be received, a radio telemeter system capable of stable operation can be provided by comparing the reception levels and using the channel with the higher reception level. . Further, even when one channel cannot be received, the other receivable channel can be used.

FIG. 4 is a flow chart in which an operation of confirming that the radio wave is the radio wave of the present radio telemeter system when measuring the reception level in FIG. Figure 4
Step S35 is added to FIG.

In step S31, if the target radio wave can be received, the flow proceeds to step S35 to receive the radio telegram, and it is determined whether or not the radio wave is the radio wave of this system. When it is determined in step S35 that the radio waves of this system are radio waves, the process proceeds to step S32. On the other hand, step S
If it is determined in 35 that the signal is not the radio wave of the system, the process proceeds to step S33. The method of determining the radio wave of this system will be described below.

FIG. 5 is a format A of the radio message of the regulation.
FIG. The format A is composed of a wireless header 40 and data 41, and the wireless header 40 is added so that the data can be accurately read by the wireless device on the receiving side. The wireless header 40 includes a bit synchronization signal 40a indicating a reception timing, a frame synchronization signal 40b, and a sender ID (local station call code) 40c.

Then, this format A is changed and used so that it can be judged whether or not it is the radio wave of this system. Figure 6
Shows the format B of the changed wireless electronic message. In the format B, a system ID 42 unique to this system is provided between the sender ID 40c of the format A and the data 41. Therefore, it is determined whether or not the received radio wave is the radio wave of the present system by confirming that the system ID 42 and the ID registered in advance in the non-volatile memory 17 or RAM 18 of the radio device on the receiving side match. be able to.

Further, when the main 10 and the sub 25 register each other as communication partners, their IDs must be registered in the non-volatile memory 17 (hereinafter, this registration operation will be referred to as an edge operation). FIG. 7 shows the sender ID 40c.
It is a figure which shows the format C which has recipient's ID (other party call code) 43 in addition to. Using this format C or format A, ID 4 of the sender in the received message
It is possible to determine whether or not the received radio wave is the radio wave of the present system by checking whether 0c or the ID 43 of the receiver matches the ID registered in the framing operation.

Therefore, when the format A or the format C is used, it is not necessary to register the system ID as compared with the case where the format B is used, and the non-volatile memory 17 and the RAM 18 can be efficiently used. , The framing operation is required in advance. As a result, when the main 10 and the sub 25 are installed, it is effective to use the format B when the reception level is measured before the framing operation, and the format A or when the reception level is measured after the framing operation. It is effective to use the format C.

FIG. 8 is a sequence diagram showing the operation when there is an input to the wireless device. For example, when there is an input in the signal input unit 21 of the sub 25, the sub 25 sends a reception level measurement message to the main 10. Here, the reception level measurement message is any of format A, format B, and format C. The main 10 receiving this reception level measurement message measures the reception level and displays the result on the display unit 20.

The data 41 of this reception level measurement message is
As shown in FIG. 9, it is composed of a command 50 indicating that it is a reception level measurement message, and data 51 for measuring the reception level (reception level measurement data) 51. In the case of a system including the main 10 and a plurality of subs 25a to 25n, for example, when a reception level measurement message is transmitted from the main 10 in the format A or the format B, the reception levels of all the subs 25a to 25n are simultaneously determined. It is possible to measure, and when transmitting in format C, it is possible to measure the reception level only in a specific sub.

FIG. 10 is a sequence diagram showing another operation when there is an input to the wireless device. For example, when there is an input in the signal input unit 21 of the sub 25, the sub 25 sends a reception level measurement message to the main 10. Here, the reception level measurement message is in the format C, and the data 4
1 has a configuration as shown in FIG. The main 10 that has received this reception level measurement message must determine that it is a reception level measurement message by the command 50, measure the reception level, check the sender's ID 40c, and send a response message by itself. Determine if there is. When it is necessary to transmit the response message, the response message 60 as shown in FIG. 11 is transmitted to the sub 25.

The response message 60 includes a response 61 indicating that it is a response message, reception level measurement data 62 that is data of the measured reception level, and reception level measurement data that is data for measuring the reception level. And 63.

Then, the sub 25 receiving the response message 60
Measures the reception level and displays the result on the display unit 20. At this time, when two measured values can be displayed on the display unit 20, the reception level measurement data 62 of the main 10 and the measured value of the sub 25 are displayed, and when only one can be displayed, they are alternately displayed at regular intervals. indicate. When the main 10 determines that it is not necessary to transmit the response message 60, the main 10 may display the reception level of the main 10 on the display unit 20 of the main 10 for a certain period of time as described above.

Next, the operation of the present system when a setting device (not shown) used by a contractor at the time of installation of the present wireless telemeter system is used will be described. FIG. 12 is a sequence diagram showing an operation when the reception level is measured using the setting device. First, when the activation message is transmitted from the setting device to the main 10, the main 10 returns the activation response message. Next, the setting device that received the activation response message is shown in FIG.
Business entity code 71, ID 72, and command 7 shown in FIG.
A reception level measurement instruction message 70 composed of 3 and 3 is transmitted.

The main 10 which has received the reception level measurement instruction message 70 transmits the reception level measurement message having the format C and the data 41 as shown in FIG. 9 to the sub 25. Sub 25 that received the reception level measurement message
Measures the reception level, and returns a response message having the format C and the data 41 having the configuration shown in FIG.

The main 10 receiving the response message measures the reception level, and the business entity code 71 and ID shown in FIG.
A reception level measurement result message 80 including 72, a response 81, a reception level measurement value 82 at the main 10 and a reception level measurement value 83 at the sub 25 is transmitted to the setter.

The setting device which has received the reception level measurement result message 80 displays the reception level measurement values 82 and 83 on the built-in display section. As a result, it is not necessary to provide the main 10 and the sub 25 with the signal input unit 21 and the display unit 20.

Next, the operation of the present system when the reception level measurement instruction is given from the center NCU 112 when the present radio telemeter system is installed will be described. Figure 15
FIG. 8 is a sequence diagram showing an operation when the center NCU 112 gives an instruction to measure a reception level.

First, the center NCU 112 is the T-NCU.
When the activation message is transmitted to 113, the T-NCU 113 that has received this activation message transmits the activation message to the main 10. Next, the main 10 receiving the activation message is T-N.
The activation response message is returned to the CU 113, and the T-NCU 113 receiving this activation response message returns the activation response message to the center NCU 112.

In this way, the center NCU 112, T
When the NCU 113 and the main 10 are in the communicable state, the center NCU 112 sends the reception level measurement instruction message 7 shown in FIG. 13 to the main 10 via the T-NCU 113.
Send 0. The main 10 which has received the reception level measurement instruction message 70 transmits the reception level measurement message having the format C and the data 41 as shown in FIG. 9 to the sub 25. The sub 25, which has received the reception level measurement message, measures the reception level and returns a response message having the format C and the data 41 configured as shown in FIG.

The main 10 receiving the response message measures the reception level, and the reception level measurement result message 8 shown in FIG.
0 is transmitted to the center NCU 112 via the T-NCU 113. As a result, after the main 10 and the sub 25 are installed, the reception level can be measured by remote control from the host computer 111 without visiting the installation site again for the purpose of confirming the radio wave environment.

With the configuration described above, the main 10
The work of determining the installation positions of the sub 25 and the sub 25 is more reliable and easier than before, but the main 10 and the sub 25 are temporarily installed,
The work of measuring the reception level and the main installation of the main 10 and the sub 25 is required, and in order to install it at a position where the reception level is better, it is necessary to perform the steps of temporary installation and measurement of the reception level several times. Takes.

Therefore, the work using the reception level measuring device for improving work efficiency will be described below. In Figure 16,
The block diagram of the structure of the receiving level measuring instrument 90 is shown. The reception level measuring device 90 is the same as the main unit 10 shown in FIG.
Since the CU interface 12 is deleted,
The same parts as those in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted. The reception level measuring device 90 has a function of displaying the reception level on the display unit 20 in real time when receiving a target radio wave.

As the work, first, the main 10 is temporarily installed, and then the signal input unit 21 of the main 10 or the center NCU.
A state in which radio waves are intermittently / continuously transmitted by a message from 112 or a setting device is set. And the reception level measuring device 9
Using 0, the reception level is measured within the installable range of the sub 25, and the sub 25 is permanently installed at the place with the highest reception level. As a result, work efficiency is dramatically improved.

Here, the starting method for the main 10 to intermittently or continuously transmit radio waves will be described in detail.
The method by the input from the signal input unit 21 of the main 10,
Comparing with the method based on the telegram from the center NCU 112, the signal input section 21 is required to input from the signal input section 21, and the signal based on the method from the center NCU 112 does not require the signal input section 21. , The cost advantage, while the center NCU112
It is necessary to complete the connection work with.
On the other hand, the method based on the telegram from the setting device does not require the signal input unit 21 and does not require prior construction with the center NCU 112, so that workability is improved.

FIG. 17 is an operation sequence diagram of the main 10 in a state in which electric waves are intermittently / continuously transmitted by a message from the reception level measuring device 90. First, when the reception level measuring instrument 90 transmits the activation message to the main 10, the main 10 returns the activation response message. When the reception level measuring instrument 90 and the main 10 are thus in a communicable state, the reception level measuring instrument 90 transmits a reception level measurement request message to the main 10. Then, the main 10 having received the reception level measurement request intermittently / continuously starts transmitting radio waves.

As a result, even if there is only one worker at the time of installation, it is possible to measure the reception level without moving between the main 10 and the sub 25 which are located apart from each other. The efficiency can be improved.

It is also possible that the main 10 voluntarily measures the reception level. FIG. 18 is a flowchart showing the operation when the main 10 voluntarily measures the reception level. In addition, the non-volatile memory 17 of the main 10 stores in advance a table in which the time and interval at which the reception level is measured voluntarily with the sub 25 are set, and a clock (not shown) is also provided in the main 10. It is supposed to be.

First, in step S100, it is determined whether the designated time has come. When the designated time has come in step S100, the process proceeds to step S101, and the reception level measurement message is transmitted to the sub 25 as in the case where the reception level measurement instruction message is transmitted from the setter described in FIG. To do. After that, the process proceeds from step S101 to step S102, and it is determined whether the response message is returned from the sub 25. When the response message is received in step S102, the process proceeds to step S103, the reception level is measured in the main 10, and the process proceeds to step S104 in which the reception level measurement value in the main 10 is measured together with the reception level measurement in the response message from the sub 25. The value is stored in the nonvolatile memory 17 or the RAM 18. After that, step S
By returning to 100 and repeating the above cycle, the reception level is periodically measured.

The data of the reception level measurement values which are periodically measured are transmitted to the host computer 111 in response to a request from the host computer 111. Then, the data is analyzed in the host computer 111,
The communication conditions between the main 10 and the sub 25 according to the time zone are calculated. Therefore, it is possible to provide a wireless telemeter system capable of stable operation by operating the system while avoiding the calculated time zone of bad communication conditions.
In addition, if the main 10 has a table in which a plurality of subs 25a to 25n can be designated, the main 10 can measure the reception level only with the designated subs, so that the time variation of the reception level measurement value is large. It is possible to collect data efficiently by specifying only possible subs.

Although FIG. 18 shows the operation when the main 10 voluntarily measures the reception level,
The sub 25 voluntarily measures the reception level, and the main 1
You may make it transmit to 0. This makes main 1
When 0 spontaneously measures the reception level, the main 10 centrally manages the data with the plurality of subs 25a to 25n, and thus the memory is compressed, but each sub 25a to 25n.
When the 25n voluntarily measures the reception level, it is possible to avoid pressure on the memory.

[0064]

According to the present invention, the wireless master unit and the wireless slave unit each have a wireless unit for data communication with the other unit, a control unit for reading the reception level output from the wireless unit, and the read reception level. By including a storage unit that stores as a reception level measurement value, the wireless master device and the wireless slave device can be efficiently arranged at a position with a high reception level, and stable operation can be performed.

For measuring the reception level, two channels having different frequencies are used, and if one channel cannot be received, the reception level is measured by switching to the other channel. For example, both channels can be received. In this case, stable operation can be performed by comparing the reception levels and using the channel with the higher reception level. Further, even when one channel cannot be received, the other receivable channel can be used.

For measuring the reception level, two channels having different frequencies are used. When one channel cannot be received, the other channel is switched to receive the radio wave, and the radio wave is transmitted to the radio telemeter device. In the case of such a radio wave, by measuring the reception level, only the radio wave of the present telemeter device can be measured, so erroneous measurement can be eliminated.

Further, either the wireless master unit or the wireless slave unit is provided with a signal input section, and when there is an input in the signal input section, the reception level measurement message is transmitted to the partner unit and the reception level measurement message is received. The partner device measures the reception level and displays the result, so that the reception level can be easily measured by the signal input unit such as a switch.

Further, either the wireless master unit or the wireless slave unit has a signal input section, and when there is an input in the signal input section, a reception level measurement message is transmitted to the partner unit and the reception level measurement message is received. When it is necessary to measure the reception level and send the response message, the partner device that has sent the response message transmits the response message including the measured reception level measurement data and the reception level measurement data, and receives the response message. Either the wireless master unit or the wireless slave unit, which measures the reception level and displays the result together with the reception level measurement data, enables the operator to install the wireless master unit or the wireless slave unit when the wireless telemeter device is installed. Since it is possible to display the reception level measurement value on the wireless device by only operating any one of them, it is not necessary to move between the wireless master device and the wireless slave device, and the work efficiency is improved.

Further, either the wireless master device or the wireless slave device which has received the reception level measurement instruction message from the setting device capable of communicating with the wireless master device or the wireless slave device transmits the reception level measurement message to the partner device, The other device receiving the reception level measurement message,
When it is necessary to measure the reception level and transmit the response message, the response message including the measured reception level measurement data and the reception level measurement data is transmitted, and the wireless master device that receives the response message or Any one of the wireless slave devices measures the reception level and transmits the measurement result together with the reception level measurement data to the setter, thereby providing the wireless telemeter device with a display unit such as an LED and a signal input unit such as a switch. Since it is not necessary, the cost can be reduced.

Further, the wireless master unit which receives the reception level measurement instruction message from the host computer transmits the reception level measurement message to the wireless slave unit, and the wireless slave unit which receives the reception level measurement message measures the reception level. However, when it is necessary to transmit the response message, the response message including the measured reception level measurement data and the reception level measurement data is transmitted, and the wireless master device that receives the response message determines the reception level. By performing measurement and transmitting the measurement result to the host computer together with the reception level measurement data, remote operation from the host computer without visiting the installation site again for the purpose of confirming the radio wave environment after installing this wireless telemeter device. The reception level can be measured with.

Further, by temporarily installing the wireless base unit, measuring the receiving level using the receiving level measuring instrument having the receiving level measuring function, and installing the wireless slave unit at a receivable position, the present wireless telemeter The work of temporarily installing the device and measuring the reception level is not necessary, and the work efficiency is dramatically improved. Furthermore, even if there is only one worker at the time of installation, the reception level can be measured without moving between the wireless master device and the wireless slave device that are located at a remote place, and the efficiency of the installation work can be improved. .

Further, the wireless master unit measures the reception level with all the wireless slave units at a preset time or interval,
By storing the measured reception level measurement value in the storage unit, the stored reception level measurement value is analyzed by the host computer, and the communication condition according to the time zone is calculated. Therefore, stable operation can be performed by operating the wireless telemeter device while avoiding the calculated time zone of bad communication conditions.

Further, the wireless master unit measures the reception level with the designated wireless slave unit at a preset time or interval,
By storing the measured reception level measurement value in the storage unit of the wireless master device, the wireless master device can measure the reception level only between the designated wireless slave devices, so that the time variation of the reception level measurement value is large. It is possible to collect data efficiently by designating only possible wireless slave devices.

Further, the wireless slave unit measures the reception level with the wireless master unit at preset times and intervals, and stores the measured reception level measurement value in the storage unit of the wireless slave unit. By storing the measurement data in the storage unit of each wireless slave unit, it is not necessary to centrally manage the measurement data of multiple wireless slave units in the storage unit of the wireless master unit, so avoiding pressure on the storage unit. You can

The wireless telemeter device of the present invention, a microcomputer meter connected to each wireless slave device of the wireless telemeter device, and a terminal side network control device connected to a wireless master device of the wireless telemeter device, A wireless telemeter device is included by configuring a wireless telemeter system by a center side network control device connected to the terminal side network control device via a communication line and a host computer connected to the center side network control device. A wireless telemeter system can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main configuration of the present invention.

FIG. 2 is a block diagram showing a sub configuration of the present invention.

FIG. 3 is a flowchart showing an operation when the wireless device of the present invention measures a reception level.

FIG. 4 is a flowchart in which an operation for confirming that the radio wave of the wireless telemeter system of the present invention is a radio wave is added to FIG.

FIG. 5 is a diagram showing a format of a radio message of a regulation.

FIG. 6 is a diagram showing a format of a wireless electronic message obtained by modifying FIG.

FIG. 7 is a diagram showing a format in which a recipient ID is added to FIG.

FIG. 8 is a sequence diagram showing an operation when there is an input to the wireless device of the present invention.

FIG. 9 is an explanatory diagram of a reception level measurement message according to the present invention.

FIG. 10 is a sequence diagram showing another operation when there is an input to the wireless device of the present invention.

FIG. 11 is an explanatory diagram of a response message according to the present invention.

FIG. 12 is a sequence diagram showing an operation when measuring a reception level using the setting device of the present invention.

FIG. 13 is an explanatory diagram of a reception level measurement instruction message according to the present invention.

FIG. 14 is an explanatory diagram of a reception level measurement result message according to the present invention.

FIG. 15 is a sequence diagram showing an operation when instructing measurement of a reception level from the center NCU of the present invention.

FIG. 16 is a block diagram showing a configuration of a reception level measuring device of the present invention.

FIG. 17 is a main operation sequence diagram of a state in which electric waves are intermittently / continuously transmitted by a message from the reception level measuring device of the present invention.

FIG. 18 is a flowchart showing an operation when the main of the present invention spontaneously measures a reception level.

FIG. 19 is a block diagram of a conventional wireless telemeter system.

[Explanation of symbols]

10 Wireless base unit (main) 11 Control unit (microcomputer) 13 radio section 17 Storage unit (nonvolatile memory) 18 Memory (RAM) 21 Signal input section 25a-25n Wireless cordless handset (sub) 40c Sender ID 42 System ID 43 Recipient ID 60 response message 62 Reception level measurement data 63 Reception level measurement data 90 Reception level measuring instrument 111 Host computer 112 Center side network control unit (Center NCU) 113 Terminal side network control unit (T-NCU) 114a-114n Microcomputer meter (meter)

Continued front page    F-term (reference) 2F073 AA01 AA07 AA08 AB02 AB03                       AB06 AB12 BB01 BC02 CC01                       CC20 GG01 GG06 GG07 GG08                 5K048 AA09 BA35 DB01 DC01 EB10                       GA06 GA14                 5K101 KK12 LL11 MM01 MM07 PP03                       QQ11 TT08 VV05

Claims (15)

[Claims] 1. A wireless master device connected to a host computer via a terminal side network control device, a communication line, and a center side network control device, and a wireless master device that is wirelessly connected to the wireless master device and each has a microcomputer meter. In a wireless telemeter device including one or more connected wireless slave devices, the wireless master device and the wireless slave device each include a wireless unit for data communication with a partner device and a reception level output from the wireless unit. A wireless telemeter device, comprising: a control unit for reading; and a storage unit for storing the read reception level as a reception level measurement value. 2. The reception level is measured by using two channels having different frequencies, and when one channel cannot be received, the reception level is measured by switching to the other channel. Wireless telemeter device. 3. The reception level is measured by using two channels having different frequencies. When one channel cannot be received, the other channel is switched to receive the radio wave, and the radio wave is transmitted by the radio telemeter device. The radio telemeter device according to claim 1, wherein a reception level is measured in the case of the radio wave related to. 4. The wireless telemeter device according to claim 3, wherein whether or not the radio wave is a radio wave relating to the present telemeter device is determined by an ID of a sender in the data of the radio wave. 5. The wireless telemeter device according to claim 3, wherein whether or not the radio wave is a radio wave relating to the present telemeter device is determined by a system ID in the data of the radio wave. 6. The wireless telemeter device according to claim 3, wherein whether or not the radio wave is a radio wave relating to the present telemeter device is determined by an ID of a receiver in the data of the radio wave. 7. The wireless master unit or the wireless slave unit includes a signal input unit, and when there is an input in the signal input unit, a reception level measurement message is transmitted to the partner unit, and the reception level measurement message is transmitted. 2. The wireless telemeter device according to claim 1, wherein the partner device receiving the message measures the reception level and displays the result. 8. The wireless master device or the wireless slave device is provided with a signal input unit, and when there is an input in the signal input unit, a reception level measurement message is transmitted to a partner device, and the reception level measurement message is transmitted. Upon receiving the response message, the partner device measures the reception level and, if it is necessary to transmit the response message, transmits the response message including the measured reception level measurement data and the reception level measurement data, and the response message is transmitted. 2. The wireless master device or the wireless slave device that has received a message measures a reception level and displays the result together with the reception level measurement data.
The described wireless telemeter device. 9. Either the wireless master unit or the wireless slave unit that has received a reception level measurement instruction message from a setting device that can communicate with the wireless master unit or the wireless slave unit is a reception level measurement message to a partner device. When receiving the reception level measurement telegram, the partner device measures the reception level and, if it is necessary to transmit the response telegram, includes the measured reception level measurement data and the reception level measurement data. A response message is transmitted, and either the wireless master device or the wireless slave device that has received the response message measures the reception level, and transmits the measurement result to the setting device together with the reception level measurement data. The wireless telemeter device according to claim 1, which is characterized in that. 10. The wireless master device, which receives a reception level measurement instruction message from the host computer, transmits a reception level measurement message to the wireless slave device, and the wireless slave device which receives the reception level measurement message receives the reception level measurement message. If you need to measure the level and send a response message,
A response message including the measured reception level measurement data and the reception level measurement data is transmitted, and the wireless master device that receives the response message measures the reception level and the measurement result is received together with the reception level measurement data. The wireless telemeter device according to claim 1, which transmits to the host computer. 11. The wireless base unit is temporarily installed, the reception level is measured using a reception level measuring instrument having a reception level measuring function, and the wireless slave unit is installed at a receivable position. The wireless telemeter device according to claim 1. 12. The wireless master device measures reception levels with all the wireless slave devices at preset times and intervals, and stores the measured reception level measurement values in the storage unit. The wireless telemeter device according to claim 1, wherein: 13. The wireless master device measures a reception level with a designated wireless slave device at a preset time or interval, and the measured reception level measurement value is stored in a storage unit of the wireless master device. The wireless telemeter device according to claim 1, wherein the wireless telemeter device is stored in. 14. The wireless slave device measures a reception level with the wireless master device at a preset time or interval,
The wireless telemeter device according to claim 1, wherein the measured reception level measurement value is stored in a storage unit of the wireless slave device. 15. The wireless telemeter device according to claim 1, a microcomputer meter connected to each wireless slave device of the wireless telemeter device, and a wireless master device of the wireless telemeter device. Wireless network system including a terminal-side network control device, a center-side network control device connected to the terminal-side network control device via a communication line, and a host computer connected to the center-side network control device .