JPH0456497A - Telemeter device - Google Patents

Abstract

PURPOSE:To enable to transmit and receive communication matters of a document form between each telemeter slave station device side and a master station device side by providing a transmitting part for transmitting to either the master station or each slave station at the idle time of a transmission line and a storage part for storing transmitted information. CONSTITUTION:When a write-in command is supplied from an arithmetic control part 11, a storage part 13 of a telemeter slave station device 13 stores measurement data to be supplied or a transmission message in a specified place, and a read-out command reads out supplied contents and supplies in the control part 11. And, when the measurement data or the transmission message are supplied from a control part 11, a transmitting and receiving part 14 fetches this and supplies in a modulating and demodulating part 16, and when various kinds of commands or transmission messages are supplied from the modulating and demodulating part 16, the transmitting and receiving part 14 fetches this and supplies in the control part 11. Thus, it is possible to transmit and receive the communication matters of the document form between each telemeter slave station device side and a master station device side, and to reduce communication errors considerably.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention uses a polling digital transmission method of a 1:n configuration or a 2:n configuration to transmit measurement data at regular intervals, such as in air pollution environment monitoring. relates to a telemeter device that collects

(Prior art) When it is necessary to collect measurement data at regular intervals, such as in air pollution environmental monitoring, a telemeter slave station device is provided on each monitoring target side, and each telemeter slave station device performs measurements. The measured data (measured data) is often sent to the telemeter master station device of the central monitoring station and managed centrally.

In this case, to correct the measurement data of the measuring device connected to the telemeter slave station device, the recording paper of the measuring device is usually collected, and the corrected data is entered by comparing it with the tally results of the computer installed at the central monitoring station. It is done in the form of

(Problems to be Solved by the Invention) However, the conventional system described above has the following problems.

That is, in such a system, the measurement data sent from each telemeter slave station device side is often abnormal.

Most of these are caused by abnormalities and poor maintenance of measuring instruments.

Regarding maintenance of measuring instruments, in the field of atmospheric environmental concentration measurement, maintenance is carried out about 2 to 4 times per year, but corrections to measured data are delayed because corrected data and notifications cannot be entered into the telemeter device on the spot. This could lead to errors in the processing of measurement results.

In addition, since it is not possible to send messages from the telemeter master station device installed at the central monitoring station to each telemeter slave station device, it is not possible to send instructions from the telemeter master station device to each telemeter slave station device in real time. The problem was that it was not possible.

Therefore, as a way to solve this problem, a system has been developed in which attached telephones are attached to each telemeter slave station device and the telemeter master station device. Therefore, it is difficult to convey accurate information, and there are problems in that messages cannot be transmitted unless someone is present at each telemeter slave station device and the telemeter master station device at the same time.

In view of the above circumstances, the present invention enables communication matters to be exchanged between each telemeter slave station device and the telemeter master station device in a document format, thereby allowing each telemeter slave station device and the telemeter master station device to It is an object of the present invention to provide a telemeter device that can significantly reduce communication errors with other parties, and also allows correction of measurement data, etc., to be made almost in real time.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, a telemeter device according to the present invention connects a master station and a plurality of slave stations via a transmission path. a transmitter that transmits information input from any of the slave stations to either the master station or each of the slave stations designated as a transmission destination during idle time of the transmission path; and a transmitter that stores the transmitted information. The device is characterized by comprising a storage section that outputs stored information to the outside when a read command is input.

(Function) In the above configuration, when information is input from either the master station or each slave station, the transmitter sends information to the master station or each slave station designated as the transmission destination during the idle time of the transmission path. After the information is transmitted to one of the destinations and stored in the storage section of the destination, it is read out by a read command and output to the outside.

(Embodiment) FIG. 1 is a block diagram showing an embodiment of a telemeter device according to the present invention.

The telemeter device shown in this figure is equipped with a plurality of measurement stations 1, one central monitoring station 2, and a plurality of transmission lines 3 connecting these stations, and the measurement data obtained by each measurement station 1 is transmitted to each transmission line. The signals are supplied to the central monitoring station 2 via the line 3 for processing, and messages are exchanged between each measuring station 1 and the central monitoring station 2 as necessary.

Each measuring station 1 has a plurality of measuring devices 5 as shown in FIG.
It is equipped with a telemeter slave station device 6 and an input/display device 7, and is capable of processing and transmitting the measurement data obtained by each stationary station 5 onto the transmission line 3 and transmitting it to the central monitoring station 2. Performs processing such as sending and receiving messages.

Each measuring device 5 measures various physical quantities to be measured, and supplies the measurement results to the telemeter slave station device 6.

The input/display device 7 is constituted by a laptop-shaped personal computer or the like that can be freely connected/disconnected from the telemeter slave station W6, and when a keyboard or the like (not shown) is operated, messages to be sent or displayed can be displayed. When a command etc. is input, it is supplied to the telemeter slave station device 6, and when information such as message data is supplied from this telemeter slave station device W6, it is displayed on a display (not shown). Display or edit.

Further, the telemeter slave station device 6 includes an input/output section 1o, an arithmetic control section 11, a connection section 12, a storage section 13, and a transmitting/receiving section 1.
4, a status 'display section 15, a modulation/demodulation section 16, a line connection section 17, and a telephone 18. A process of sending information such as input transmission messages onto the transmission line 3 and transmitting it to the central monitoring station 2, and a process of capturing and inputting transmission messages transmitted from the central monitoring station 2 via the transmission line 3. - Performs processing such as displaying on the display device 7.

The human output section 10 is equipped with various interface circuits, and when measurement data is output from each measuring device 5, it takes in the data and supplies it to the arithmetic control section 111.

The connection section 12 is composed of a connector, etc., and when the input/display device 7 is connected, it receives various commands, transmitted messages, etc. output from the input/display device 7. is supplied to the calculation control unit 11,
Also, when a message or the like is supplied from the arithmetic control section 11, it is taken in and supplied to the input/display device 7.

The arithmetic control section 11 is equipped with a CPU such as a microprocessor, processor, etc., and processes measurement data etc. output from the input/output section 10 and various commands supplied from the connection section 12.
It processes transmission messages, sausages, etc., and processes transmission messages, sausages, etc. supplied via the transmitting/receiving section 14.

Furthermore, the storage section 13 is equipped with a semiconductor memory or the like of a required capacity, and when a write command is supplied from the arithmetic control section 11, it takes in the measurement data, transmission message, etc. supplied with the write command and specifies the data. When a read command is supplied from the arithmetic control unit 11, the content specified by the read command is read and supplied to the arithmetic control unit 11.

Furthermore, when the status display section 15 is supplied with display data indicating that a transmitted message has been received from the arithmetic control section 11, it displays this in a designated format.

Furthermore, when the transmitting/receiving section 14 is supplied with measurement data, transmission messages, etc. from the arithmetic control section 11, it takes in the data and supplies it to the modulation/demodulation section 16, and also receives various commands, transmission messages, etc. from the modulation/demodulation section 16. When supplied, it is taken in and supplied to the arithmetic control section 11.

The modulation/demodulation section 16 is equipped with a modem, etc., and when measurement data, transmitted messages, etc. are supplied from the transmission/reception section 14, it modulates the data and supplies it to the line connection section 17. When a received signal is supplied, it is demodulated and supplied to the transmitting/receiving section 14.

Further, the telephone 18 is a telephone used when talking to a person on the side of the central monitoring station 2, and when a call signal is supplied from the line connection section 17, it emits a ring tone and also has a handset (not shown). When the handset is lifted up, it becomes in a talking state and converts the audio signal supplied from the line connection section 17 into voice and outputs it, or converts the voice input from the handset into a voice signal and sends it to the line connection section 17. supply.

In addition, the line connection section 17 is equipped with a band division circuit, etc.
Band division is performed to connect the modulation/demodulation section 16 and the telephone 18 to the transmission line 3.

The central monitoring station 2 also includes a telemeter master station device 20, a display/input device 21, and a computer system 2, as shown in FIG.
2, each measurement station 1 is connected to each measurement station 1 via each transmission line 3.
It collects measurement data from and processes it, and sends and receives messages to and from each measuring station 1 as necessary.

The telemeter master station device 20 is connected to each telemeter slave station device 6.
Similarly, it is equipped with an arithmetic control section, a modulation/demodulation section, a line connection section, a telephone, etc., and it sequentially selects and specifies each measurement station 1 at a predetermined period, and requests data on the transmission line 3 corresponding to the specified measurement station 1. Processing such as sending a command to collect measurement data from a specified measuring station 1 and supplying it to the computer system 22, processing for sending and receiving transmission messages to and from each measuring station 1, and processing for calling each measuring station 1. Let's do it.

The display/input device 21 is equipped with a display such as a CRT, a keyboard, etc., and when the keyboard is operated, generates input information according to the operation content and supplies it to the telemeter master station device 20, Also, this telemeter master station device 2
When a transmitted message or the like is supplied from 0, it is captured and displayed on the display.

Further, the computer system 22 includes the telemeter master station device 2.
Collects measurement data etc. supplied from 0 and processes them.

Next, the operation of this embodiment will be explained with reference to FIGS. 1 and 2.

First, when the input/display unit 7 is operated and information such as a message to be sent is input, the arithmetic control unit 11 takes in this information and stores it in the storage unit 13, and also indicates that there is information such as a message to be sent. Set the message flag to indicate.

Further, in parallel with this operation, the arithmetic control unit 11 takes in the measurement data output from each measuring device 5 via the input/output unit 10 and sequentially stores it in the storage unit 13.

Thereafter, a polling signal is output at regular intervals from the telemeter master station device 20 of the central monitoring station 2, and the polling signal is transmitted to the line connection section 17 and the modulation/demodulation section 1 of the measurement station 1 selected at that time.
6. When the data is sequentially supplied to the arithmetic control unit 11 via the transmitting/receiving unit 14, the arithmetic control unit 11 scans the measurement data stored in the storage unit 13, edits it, and sets a message flag. If it is not set, the edited measurement data is sent out onto the transmission line 3 via the transmitting/receiving section 14, the modulation/demodulation section 16, and the line connection section 17 in order, and sent to the telemeter master station of the central monitoring station 2. If the message flag is set, the message flag is transmitted to the transmission line 3 along with the edited measurement data via the transmitting/receiving section 14, the modulation/demodulation section 16, and the line connection section 17 in order, and is centrally monitored. It is transmitted to the telemeter master station device 20 of station 2.

Then, the telemeter master station device 20 takes in the measurement data transmitted from the measuring station and transfers it to the computer system 20.
If a message flag is added to this measurement data, this message flag is separated from the measurement data and is supplied to the display/input device 21 for display.

After that, an operator or the like on the central monitoring station 2 side who saw the content displayed on the display/input device 21
1 is operated to input a message request command, the telemeter master station device 20 generates a message request command during free time other than when collecting measurement data, sends it onto the transmission line 3, and sends the message. The flag is transmitted to the telemeter slave station device 6 of the measurement station 1 that sent the flag.

Then, when this message request command is sequentially supplied to the calculation control unit 11 via the line connection unit 17, the modulation/demodulation unit 16, and the transmitting/receiving unit 14 of the measurement station 1 that sent the message flag of the measurement station 1, the calculation control unit 11 reads the transmitted message etc. stored in the storage unit 13 and sends it to the transmitting/receiving unit 14.
, the modulation/demodulation section 16, and the line connection section 17 in order.
It is transmitted to the telemeter master station device 20 of the central monitoring station 2 and displayed on the display/input device 21.

Also, when information such as a transmitted message is input from the display/input device 21 of the central monitoring station 2, the telemeter master station device 2
After storing this information, 0 sends the transmission message etc. onto the transmission path 3 during free time other than when collecting measurement data, and transmits it to the telemeter slave station device 6 of the measurement station 1 designated as the transmission destination. .

When this transmitted message etc. is sequentially supplied to the calculation control unit 11 via the line connection unit 17, modulation/demodulation unit 16, and transmission/reception unit 14 of the measuring station 1 designated as the transmission destination, the calculation control unit 11 receives this information. is captured and stored in the storage unit 13, and content indicating that information such as a transmitted message has been received is displayed on the status display unit 15.

Thereafter, when the operator at the measuring station 1 who has seen the displayed content operates the input/display device 7 to input a message display command, the arithmetic control section 11 sends the transmitted message stored in the storage section 13, etc. is read out and displayed on the display/input device 21.

In this way, in this embodiment, messages can be sent and received between each measuring station 1 and the central master station 2, so that communication between each measuring station 1 side and the central monitoring station 2 side is possible. Communication information can be exchanged in document format between the two stations, which greatly reduces communication errors between each measuring station 1 side and the central monitoring station 2 side. It can be done almost in real time.

In addition, in the embodiment described above, when each measuring station 1 sends information such as a transmission message to the central monitoring station 2, a message flag is transmitted together with the measurement data, and the transmission message is sent during free time outside the station when collecting measurement data. Since information such as the following information is sent, it is possible to send a transmission message from each measurement station 1 to the central monitoring station 2 without interfering with the measurement data collection operation.

Also, when transmitting information such as messages from the central monitoring station 2 to each measuring station 1, the central monitoring station 2 sends messages to the destination measuring station 1 during free time outside the station when collecting measurement data. Since the data is stored, the transmission message can be transmitted from the central monitoring station 2 to each measurement station 1 without interfering with the measurement data collection operation.

Further, in the embodiment described above, the display/input device 21
When the is operated, information such as the message to be sent is displayed. However, when the message flag is transmitted, the computer system 22 may issue a message request at a predetermined timing.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to send and receive communications in document format between each telemeter slave station device and the telemeter parent station, and thereby each telemeter slave station device and the telemeter parent Communication errors with the station equipment side can be significantly reduced, and measurement data, etc., can be corrected almost in real time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a telemeter device according to the present invention, and FIG. 2 is a detailed block diagram of the telemeter slave station device shown in FIG. 1. 1...Slave station (measurement station) 2...Master station (central monitoring station) 3...Transmission path

Claims (1)

[Claims] (1) In a telemeter device that connects a master station and a plurality of slave stations via a transmission path, information input from either the master station or each of the slave stations is transmitted as a destination during idle time of the transmission line. a transmitting unit that transmits to either the specified master station or each of the slave stations; a storage unit that stores the transmitted information and outputs the stored information to the outside when a read command is input; A telemeter device characterized by comprising: