JPS58151763A - Data transmission system of telemeter - Google Patents

Abstract

PURPOSE:To make the content easily understandable, by providng a sound synthesizer for a transmission station, a sound receiver for a reception station, converting a measuring data inputted to the transmission station into sound data and outputting the data in sound at the reception station, in the telemeter transmission system. CONSTITUTION:The measuring data obtained from an external sensor 1 is applied to the sound synthesizer 210 via an interface 230 of a terminal station 200 and this data is converted into a sound data. This sound data is transmitted to a telephone set 10 via a network controller 220, a subscriber line 300, an exchange 400 and a subscriber line 310 and given to a recipient in voice. An exclusive device such as display suitable to the kinds of the measuring data is not required at the reception side and no skillful operator is required.

Description

[Detailed description of the invention] [Technical field of invention J The present invention relates to a telemeter data transmission device.

[Technical background of the invention]

In recent years, telemeter systems have become popular, in which a transmitting station installed in a remote location transmits the measured data to a receiving station using a communication line, and the receiving station edits and displays this measured data. It has been put into practical use as a water level gauge and many other things.

Figure jg1 is a general block diagram of a conventional telemeter system. Measurement data added from an external sensor 1 to a transmitting station 2 is modulated by the transmitting station 2 and then sent to a communication line 3 (dedicated port! i! or ) is transmitted to the receiving station 4 via the receiving station 4, which demodulates and digitizes the transmitted measurement data using the modem 5, and then outputs it to the display 6 and alarm sound generator 7. .

[Problems with background technology]

However, in the above-mentioned conventional system of this kind, the receiving station must be equipped with dedicated equipment for the modem display and alarm sound generator, which increases the burden on the receiving station's equipment, and the output of the display and alarm sound generator Since the device is a dedicated device, there is a problem in that it is difficult for those who have not received special training to understand the output answers1. [Object of the Invention] The present invention has been made in view of the above circumstances. The object of the present invention is to provide a telemeter data transmission device that does not require any special dedicated equipment and whose output contents can be clearly understood even by those who have not received special training.

[Summary of the invention] According to the present invention, a speech synthesizer is installed at a transmitting station and a voice receiver is installed at a receiving station, and the 1-copper data inputted to the transmitting station is converted into audio data and transmitted to the receiving station. Therefore, the receiving station can obtain measurement data in an understandable format by simply preparing a simple voice receiver (specifically, a subscriber line telephone).

Embodiment of the Invention] FIG. 2 is a block diagram of an embodiment of the present invention. According to the present invention, a telephone 10 is provided at a receiving station, a speech synthesizer 11210 and a network control device 220 are provided at a terminal jI 200. ,
The measurement data obtained from the external sensor 1 is added to the voice synthesizer 2]0 via the interface 7Ace 230, and this measurement data is converted into voice data by the voice synthesizer. , exchanger 400,
The information is transmitted to the receiving station's telephone 10 via the subscriber line 310. Therefore, according to this embodiment, the receiving station joins 11113
By simply preparing a nine telephone set 10 connected to 10, it is possible to obtain measurement data in the form of voice data.

The ink face 230 is connected to the external cell II.
For example, FIG. 3 shows nine examples in which the present invention is applied to a dam water level measuring system. In this example, a 4-digit water level gauge 11 is used as an external sensor, and a shift register is used as an A parallel-to-serial conversion circuit 231 is used. Moreover, FIG. 4 is an operation timing chart thereof.

4-digit water level gauge 11, 10”, 102nd, 101st, 10
Degrees are in units of 10tn, units of 1m, units of 40am, and 1
It corresponds to c11 units, and each digit is made up of 11CD code and 5 parity bits. This water level gauge 11 outputs water level data periodically (for example, every 10 minutes or every hour), and the parallel-to-serial conversion circuit 231 outputs water level data.
added to. This parallel-serial conversion circuit 231
#'i consists of a parallel-in serial-out shift register, where the water level data is converted into serial data and applied to the speech synthesizer 210. This voice synthesis may be realized by any device, but since the purpose of this embodiment is to collect water level data of a dam, it is constructed of a semiconductor integrated enclosure that is less susceptible to fluctuations in weather conditions. An example using a speech synthesizer is shown below. That is, in this embodiment, the speech synthesis device 210 uses the CPU
When the water level data is added to the speech synthesizer 210 (4th t!; J(a)), the CPU 21
1 is activated, and the CPU 211r temporarily stores this water level data in the memory 212, and sends an activation signal ACT to the network control device to perform calling control.

When activated, the network control device 220 closes a four-wire DC loop, sends the dial data to the subscriber line 300i, and sends it to the exchange 400 (see Φ in FIG. 4).
00 calls the telephone 10 of the receiving station. When the telephone 10 goes off-hook, the loop between the telephone 10 and the subscriber line 310 is closed, and the exchange 400 notifies the subscriber line 1130 of this fact.
The polarity reversal of 0 is transmitted to the network control device 220 of the transmitting station 200. In this way, the line of sight between the transmitting station 200 and the telephone set 10 has been established, and the network control device 220 and the telephone 10 have learned that they are friends.
Send NT. As a result, the CPU 211 starts transmitting the audio signal.

First, the CPUI sequentially reads the water level data saved in the memo IJ 212 and transfers it to the total speech synthesis IJI 213. The LSI 213Ifi is divided into a control section and a storage section, and the ROM area, which is the storage section, stores audio parameters. The control unit of the voice synthesis L8I 213 reads the voice parameters in the ROM area based on the nine-level data transferred by the CPU 211, converts them into voice data, and outputs them.

The water level data converted into voice data by the voice synthesizer 210 is sent to the telephone 10 via the network control device 200, the subscriber line 300, the exchange 400, and the subscriber line fi 1310 (see Φ in FIG. 4), and is therefore sent to the telephone IO. The water level data obtained from Karakema water level 1tllK is output in the form of audio data (see FIG. 4(C) jl). To give a specific example, when the water level gauge 11 reaches the state shown in Fig. 3, it is 1 hour.
The voice data 1 is output from the telephone 10. When the voice data transmission is completed in this way, the network control device 2
20 releases the subscriber line 300 and sets it to the initial state. still,
End of data transmission ij The CPU 211 may send a control 4I signal to the network control device 220 to inform the network control device 220 of this fact, or if the audio data output from the speech synthesis circuit 210 stops for a predetermined period of time or more, the network The 11J controller may determine that the data transmission has ended.

Alternatively, a clock device 240 may be provided in the terminal station 200, and time data may be added from the clock device 240 to the speech synthesizer 210 immediately before or after the water level data is added from the parallel real conversion path 231 to the speech synthesizer 210. In this way, the water level data and the #f time data are outputted from the telephone 10 in the form of voice data.In particular, if the telephone 10 is equipped with a so-called answering machine, the water level can be changed over time even if the master station is an unmanned station. Changes can be detected accurately.

Furthermore, by adding a parity check function to the CPU 211, it is possible to notify the receiving station of the occurrence of a parity error.Furthermore, by giving a dangerous water level to the CPU 211 in advance, an alarm will be issued when the water level data reaches the dangerous water level. The data may also be generated audibly.

Next, Figure @5 is a block diagram showing another embodiment of the present invention. According to this embodiment, the receiving station can call the transmitting station to collect measurement data, and furthermore, the control device of the master station can call the transmitting station to collect measurement data. You can specify the destination of measurement data.

First, a case where a receiving station calls a transmitting station to collect measurement data will be described.

First, measurement data obtained by the external sensor 1 is applied to the speech synthesizer 210 via the interface 230, and time data is added and periodically written to the memory within the speech synthesizer 210.

When the telephone 10 of the receiving station goes off-hook, the telephone 10 and the joining I! The loop of the 21 line 310 is closed, and the dialing data of the transmitting station 200 is then transferred from the telephone 10 to the exchange 40.
Transmitted to 0. As a result, the exchange 400
A paging signal is sent to the network side W device 220 via 300 t-. The network side device a 220 that received this uses the joining line 300.
and the network control device 220, and when this loop is closed, the timing-based W circuit 250 outputs the audio sound I.
li, applies an interrupt signal to device 210;

The voice synthesizer 210 that received this interrupt signal converts the total-j data and time data written in its own internal memory into voice data, and sends the network control device 220 times 300 times.
Telephone aii! via exchange A400/subscription #310! i
Therefore, the receiving station can know the measurement data and its measurement time in the form of audio data whenever necessary.

Next, after the master station calls the transmitting station and designates the destination of the measurement data, the transmitting station 200 is designated and the nine receiving and transmitting Jii1
The case where 1VCIirt1111 data is sent will be explained.

First, the control device 101 on the master station side joins 1! 320 and transmits the dial data of the transmitting station 200 to the exchange 400 via this subscriber line 320. As a result, the network control device 22
Network controller 220 sends a paging signal to 0, and upon receiving this paging signal, network control device 220 closes subscriber line 300. Joined line 3
Upon learning that 00 is closed, the timing control device 25
0 adds an interrupt signal to the alert destination control device 260K, and this interrupt signal causes the alert destination control device 260 to
The controller 261 i'i starts a write operation of the memory 262. The time required up to this point after closing the access point fi 1300 is a known matter for the control 41 device 101 on the master station side, and after the required time has elapsed, the control device 101 performs the following steps: 1!320, exchange 400, 300 joins. The dial data of the measurement data destination is sent to the network control device 2 via
20. Network control device 220 transfers this dial data to destination control device 260 , and the thus transferred dial data is written into memory 262 by controller 261 . When the transmission of dial data is completed in this way, the control device 1 on the master station side
01 releases the subscriber line 320 and sends a message to that effect to the exchange 400.
#device 11220 on the network side also receives the message from the subscriber side 113
00 is released, and this completes the setting of the measurement data destination.

On the other hand, the external sensor l#'i periodically outputs measurement data, and this total #j data is added to the speech synthesizer 210 via the interface 230 and is sent to the speech synthesizer 121.
Temporarily written to memory in 0. 1. When the joining side @ 300 is closed by the calling control of the network control device 220, the timing control circuit 250 issues an alarm. An interrupt signal is sent to the previous control device 260, and the bundling controller 261 reads out the tire data p set in the memory 262 and outputs it to the network control device 220. This dial data is sent to the exchange 40 via the subscriber line 300.
0, the exchange 400 Fi sends a calling signal to the 9 subscriber telephone set specified by this dial data. Control device 220
The loop between the subscriber telephone set specified by the dial data and the subscriber telephone set is closed.

When this loop is closed, an interrupt signal is applied from the timing control circuit 250 to the speech synthesizer 210, and as a result, the speech synthesizer 210 converts the Fi meter measurement data to audio data. The measurement data converted into voice data is transmitted from the network control device 220 via the subscriber line 300 and exchange 400 to the subscriber telephone specified by the dial data. Therefore, the subscriber telephone designated as the control 1 station 101 on the master station side can hear the next measurement data obtained by the external sensor 1 of the terminal station 200 as audio data.

Furthermore, by providing the controller 261 of the destination control device 260 with the activation function of the network control device 220, the switch 4
Measurement data can be continuously transmitted to a plurality of subscriber telephones connected to 00.

That is, a plurality of pieces of dial data are written in advance in the memory 262 in the destination control device 260 by the control device 101 on the master station side, and when there is timetable data in the memory 262, the network control device 220 is activated. (contact within the notification destination control device 260).

- controller 261 so that the above control procedure is operated by an interrupt signal from the timing control device 250.

First, when the transmission of measurement data to the eleventh subscriber telephone device is completed, the network control device 220 connects the subscriber line 3005.
When the timing control circuit 250 finds out that the subscriber line 300 has been released, the timing control circuit 250 applies a Fii signal to the destination control device 260. This interrupt causes the controller 26
1 searches the memory 262, and if the dial data of the second subscriber telephone set is found, the network controller 220 is activated, and the network controller 220 closes the subscriber line 300. Joined line 3
00 is closed, the timing control device 250 applies an interrupt number O1 to the destination control device 260, and this interrupt signal causes the controller 261 to read the dial data of the second subscriber telephone from the memory 262, and The dial data is output to the network control device 220. The network control device transmits this dial data to the exchange 400 via the subscriber line 300k, and calls the second subscriber telephone set w.

In the same manner as above, the memo +726 of the destination control device 260 is
Dial data is written in the 2 yen, and measurement data is sequentially transmitted in the form of voice data to the friend's subscriber telephone.

In the above example, a speech synthesis LSI was used as the speech synthesis device, but a magnetic tape device may also be used. or,
In the above example, the measurement data added from the external sensor is BCD.
Although an example is shown in which the data is expressed in the form of a code, the data format should not be limited to this. In addition, there is no membership fee for the subscriber line, which is necessarily a subscriber line that meets the electric corporation standards.

〔Effect of the invention〕

As explained above, according to the present invention, various measurement data can be transmitted in the form of audio data, and the receiving side is equipped with a dedicated device such as a modem and a display device compatible with the type of data. Moreover, since the measurement data is transmitted in the form of voice data, there is no need to pay for having a specially trained operator on the receiving side.

Furthermore, since it is possible to use subscriber lines compliant with the public corporation standards, it is possible to freely increase or decrease the number of receiving stations. Furthermore, by adding functions to the speech synthesizer, various advanced applications are possible, such as being able to perform various service calls (for example, reporting the occurrence of a parity error or a dangerous situation).

[Brief explanation of the drawing]

Figure M1 shows a conventional telemeter data transmission device, Figure 2,
3 and 5 are block diagrams of one embodiment of the present invention, respectively. FIG. 4 is a timing diagram of the embodiment shown in FIGS. 2 and 3. l External sensor, 200... transmitting station, lO... receiving station, 2] 0, voice synthesizer, 220, network υ control device, 2
30...Ink 7 Eighth, 250 Timing control device, 260... Alert destination control device.

Claims (2)

[Claims] (1) Equipped with a voice synthesis means for inputting measurement data detected by an external sensor and synthesizing an audio signal corresponding to the one scoop of data, and transmitting the measurement data as an audio signal to a receiving station via a communication line. A telemeter data transmission device that uses % mold to do this. (2) The voice synthesis device includes a storage section that digitally stores a predetermined voice parameter corresponding to the address signal using measurement data as an address signal. p-telemeter data transmission device 1゜