JPH06253372A - System for setting terminal function of remote supervisory and controlling system - Google Patents

Abstract

PURPOSE:To prevent erroneous setting from occuring even when a distance between a terminal equipment which is the subject of setting and a setting device is relatively large at the time of setting data to the terminal equipment. CONSTITUTION:The setting device 34 is provided with an operation part 11 for performing the setting operation of function data and address data. Also, when the setting operation is performed by the operation part 11, mode switching signals are transmitted to the terminal equipments 32 and 33 to be the subject of the setting by strongly directional wireless signals and also the data to be set are transmitted through a signal line Ls to a central processing unit 31. The central processing unit 31 transmits transmission signals including the data transmitted from the setting device 34 through the signal line Ls. When the mode switching signals by the wireless signals are received from the setting device 34, the terminal equipments 32 and 33 are operated in a setting mode and the data included in the transmission signals transmitted through the signal line Ls are stored in a storage part in the setting mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal function setting system for a remote monitoring and control system for setting the function of a terminal connected to a central processing unit by a time division multiple access system.

[0002]

2. Description of the Related Art Conventionally, a remote monitoring control system having a structure as shown in FIG. 7 has been known. That is, in the central processing unit 31, a plurality of operation terminals 32 for monitoring the operation state of the switch SW and a plurality of control terminals 33 for controlling the load L are provided via a two-wire signal line Ls. Connected. Operation terminal 32, control terminal 33
, An individual address is set respectively, and the central processing unit 31 individually recognizes the operation terminal 32 and the control terminal 33 by using this address.

The central processing unit 31 uses the signal line Ls for
A transmission signal Vs having a format as shown in FIGS. 8A and 8B is transmitted. That is, the transmission signal Vs is an address data signal for transmitting address data for individually calling the start pulse ST indicating the start of signal transmission, the mode data signal MD indicating the signal mode, the operation terminal device 32, and the control terminal device 33. A time slot for receiving AD, a control data signal CD for transmitting control data for controlling the load L, a checksum data signal CS for detecting a transmission error, and a return signal from the operation terminal 32 and the control terminal 33. Is a bipolar (± 24 V) time-division multiplexed signal having a signal return period WT, and data is transmitted by pulse width modulation.

Each operation terminal 32, each control terminal 33
Then, when the address data transmitted by the transmission signal Vs received via the signal line Ls matches the preset address data, the control data is fetched from the transmission signal Vs, and at the same time as the signal return period WT of the transmission signal Vs. The return data is synchronized with the current mode signal (signal line L
It is sent back as a signal sent by short-circuiting the lines of s via a suitable low impedance.

Further, the central processing unit 31 is provided with dummy signal transmitting means and interrupt signal processing means. The dummy signal transmitting means sets the mode data signal MD to the dummy mode, and constantly sends a dummy transmission signal including empty addresses that are not set to the operation terminal device 32 and the control terminal device 33 as address data. Further, the interrupt signal processing means, when receiving the interrupt signal Vi as shown in FIG. 8C generated by any of the operation terminals 32, detects the operation terminal 32 that generated the interrupt signal Vi. After that, the operation terminal 32 is accessed to return the reply data. That is, the dummy signal transmitting means always sends the dummy signal to the signal line Ls, and the interrupt signal Vi generated from the operation terminal 32 in accordance with the operation of the switch SW is the start pulse signal S of the dummy transmission signal.
When it is detected in synchronization with T, the central processing unit 31 sends out the transmission signal Vs in which the mode data signal MD is in the address confirmation mode by the interrupt processing means. In the address confirmation mode, the operation terminals 32 having a part of the common address are grouped, and the transmission signal Vs is collectively set for each group. When the mode data signal MD receives the transmission signal Vs in the address confirmation mode, the operation terminal 32 that has generated the interrupt signal Vi is synchronized with the signal return period WT of the transmission signal Vs, and the operation terminal 32 is operated.
The address data set in is returned as reply data. In this way, the central processing unit 31 acquires the address of the operation terminal 32 that has generated the interrupt signal Vi, and accesses the operation terminal 32 using the acquired address to connect to the operation terminal 32. The monitor data corresponding to the operated state of the switch SW is received as the reply data.

In the central processing unit 31, the operation terminal 32
Based on the monitoring data sent back from the control data, the control data to be transmitted to the control terminal device 33 to which the load L having the preset correspondence relationship with the switch SW is connected is created, and the transmission signal Vs including the control data is generated. The load L is controlled by sending it to the signal line Ls and transmitting the control data to the corresponding control terminal device 33.

In the operation terminal 32, up to four independent switches SW can be connected, and in the control terminal 33, up to four independent loads L can be connected. It is configured. That is, the operation terminal 3 in which the same address data is set
2 and load terminal data of 2 bits are set for each of the control terminals 33, and up to four switches SW and loads L can be identified.

By the way, the operation terminal 32 and the control terminal 33 have a structure as shown in FIG. 9 (the operation terminal 32 is shown in the figure). That is, the signal processing unit 2 including a dedicated integrated circuit with a built-in microprocessor
1, the function of delaying the load L on or off by operating the switch SW connected to the signal processing unit 21 can be set by the function data stored in the storage unit 22. There is. The address data is also stored in the storage unit 22. E in the storage unit 22
An EPROM is used, and the contents can be rewritten through the signal processing unit 21. The power supply of the operation terminal 32 is obtained by full-wave rectifying and stabilizing the transmission signal on the signal line Ls by the power supply circuit 24. The transmission signal is input to the signal processing unit 21 via the transmission / reception unit 23.

The contents of the storage unit 22 are set by receiving a wireless signal, such as infrared light, from a setting device 34 (see FIG. 7) provided outside through a wireless signal receiving unit 25. The setter 34 is configured to be able to set and confirm the function data and address data stored in the storage unit 22, and by selectively transmitting the wireless signal in the setting mode and the confirmation mode, the signal processing is performed. The unit 21 is adapted to perform the corresponding processing. When the wireless signal is normally received, the wireless signal transmission unit 26 sends a wireless signal for confirmation of reception to the setter 34.

[0010]

By the way, since the above-mentioned setting device 34 transmits and receives a wireless signal to and from the operation terminal device 32 and the control terminal device 33, it takes a relatively long time. Therefore, it is necessary to maintain the positional relationship between the setting device 34 and the wireless signal reception unit 25 and the wireless signal transmission unit 26. Therefore, when the distance between the operation terminal device 32 or the control terminal device 33 and the setting device 34 is large, it is difficult to maintain the target position when the directivity of the wireless signal is strong, and normal transmission / reception of the wireless signal cannot be performed. become. In order to avoid such a problem, it is conceivable to weaken the directivity, but if the directivity is weak, a wireless signal will be incident on the adjacent operation terminal 32 or control terminal 33. , Erroneous setting will occur. On the other hand, if the directivity is increased, erroneous setting can be prevented, but it is necessary to reduce the distance in order to transmit / receive wireless signals.

That is, the conventional setting device 34 is configured to be used in the vicinity of the operation terminal device 32 and the control terminal device 33, and therefore the output intensity of the wireless signal is set to be small. . As a result, when the operation terminal 32 and the control terminal 33 are installed at a high place such as a ceiling, there arises a problem that the setting by the setting device 34 cannot be performed.

An object of the present invention is to solve the above-mentioned problems, and remote monitoring that prevents erroneous settings even when the distance between the terminal device to be set and the setting device is relatively large. It is intended to provide a setting method of the terminal function of the control system.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a plurality of terminal units each having an address separately connected to a central processing unit through a signal line in a time division multiple connection system. For a desired terminal device of the above, a setting device for setting the function data that determines the function of the terminal device and the address data that determines the address of the terminal device in the storage unit provided in the terminal device is provided. Connected to the signal line, the operation unit that performs the data setting operation, the wireless signal generator that transmits the mode switching signal to the terminal device to be set by the strongly directional wireless signal when the setting operation is performed by the operation unit And a setting terminal processing unit for transmitting the function data and the address data input by the unit to the central processing unit by a transmission signal having a predetermined format through a signal line. Operates in the setting mode when it receives the mode switching signal from the setting device. In the setting mode, the data included in the transmission signal from the central processing unit that is transmitted in the above format via the signal line is converted into the functional data and the address data. And the central processing unit sends out a transmission signal containing the functional data and the address data on the signal line when receiving the transmission signal containing the functional data and the address data from the setting terminal processing unit.

The setting device main body including the operation unit and the wireless signal generating unit and the setting terminal device including the setting terminal processing unit are separately provided, and the setting device main unit and the setting terminal device have a wired data transmission path. You may make it couple | bond together via. Further, the setting unit main body including the operation unit and the wireless signal generation unit and the setting terminal unit including the setting terminal processing unit are separately provided, and the setting unit main unit and the setting terminal unit are connected via a wireless data transmission path. They may be combined by combining them.

[0015]

In the configuration of the present invention, when the setting operation is performed by the operation unit, the wireless signal generation unit for transmitting the mode switching signal to the terminal to be set by the strongly directional wireless signal, and the operation unit connected to the signal line. It is provided in the setting terminal processing unit and the setting unit that transmits the function data and address data input by the to the central processing unit by the transmission signal having the predetermined format through the signal line, and the terminal unit receives the mode switching signal from the setting unit. When received, it operates in the setting mode. In the setting mode, the data included in the transmission signal from the central processing unit, which is transmitted in the above format via the signal line, is stored in the storage unit as the functional data or the address data, and the central processing is performed. When the device receives the transmission signal including the function data and address data from the setting terminal processing unit, the device receives the function data and address data on the signal line. Since the wireless signal has a strong directivity and only the mode switching signal is given to the terminal device, the position of the setting device is maintained with respect to the terminal device to be set. The time may be relatively short, and the wireless signal can be reliably transmitted to the terminal even when the distance between the terminal and the setting device is relatively large. On the other hand, the data to be set in the storage unit of the terminal device is transmitted to the central processing unit through the setting terminal processing unit and to the terminal unit through the central processing unit by using the signal line. The frequency of occurrence of data transmission errors is reduced regardless of the positional relationship with the device. As a result, even when the terminal device is placed at a high place such as a ceiling and the distance from the setting device to the terminal device is relatively large, it is possible to set the data in the storage unit.

The invention of claim 2 and the invention of claim 3 are
A setting device main body including an operation unit and a wireless signal generation unit and a setting terminal device including a setting terminal processing unit are separately provided, and a transmission line connecting the setting device main unit and the setting terminal device is provided.
In the invention of claim 2, it is wired and in the invention of claim 3, it is wireless. In either configuration, the setting terminal device can be separated from the setting device main body and connected to the signal line. The body can be downsized.

[0017]

(Embodiment 1) Since the basic construction of this embodiment is the same as the conventional construction, the description will focus on the differences. Setting device 3
As shown in FIG. 2, the reference numeral 4 includes a wireless signal generator 13 for transmitting a wireless signal by light to the terminal. This wireless signal has a narrow beam divergence so as to have strong directivity. Further, since the wireless signal is only transmitted to the terminal device, the wireless signal receiving unit is not provided. This point is the same in the terminal device, and the wireless signal transmission unit 26 is omitted.

The wireless signal generator 13 is a signal processor 10 which is a dedicated integrated circuit equipped with a microprocessor.
Connected to. In addition, the signal processing unit 10 is connected to a display 12 such as a liquid crystal display capable of displaying characters and figures, and a display corresponding to the output from the signal processing unit 10 is performed. The operation unit 11 forms a key matrix with a switch group and is connected to the control unit 10. Further, the signal processing unit 10 is connected to the setting terminal processing unit 14 which is connected to the signal line Ls and can exchange the transmission signal Vs with the central processing unit 31. Setting terminal processing unit 1
4 is an operation terminal unit 3 when connected to the signal line Ls.
Similar to the control unit 2 and the control terminal 33, the transmission signal Vs is exchanged with the central processing unit 31, and the data is exchanged with the central processing unit 31. However, the address of the setting terminal processing unit 14 is fixedly set, and when the central processing unit 31 recognizes the setting terminal processing unit 14, writing to the storage unit 22 of the operation terminal device 32 or the control terminal device 33 is performed. And read processing.

When using the above-mentioned setting device 34, as shown in FIG. 1, the setting terminal processing unit 14 is connected to the signal line Ls. When the connection is made in this way, the setting terminal processing unit 14 operates as a terminal device with respect to the central processing unit 31, as described above. First, the procedure for setting function data and address data to the terminal is shown in FIG.
Will be explained. A state in which the function data and the address data are set is selected by operating the operation unit 11. At this time, if the position of the setting device 34 is determined so that the wireless signal from the setting device 34 can be received by the target terminal device, the wireless signal generation unit from the setting device 34 to the target terminal device is set. The mode switching signal is transmitted as a wireless signal through (13). The terminal device receiving the mode switching signal operates in the setting mode. In setting mode,
When the mode data of the transmission signal Vs transmitted through the signal line Ls is the setting mode, the transmission signal Vs is captured and the function data and address data included in the transmission signal Vs are written in the storage unit 22. In the setting mode, the data stored in the storage unit 22 is returned in response to the confirmation mode transmission signal Vs from the central processing unit 31. Setting device 3
In 4, a setting instruction including data such as function data and address data is input to the setting terminal processing unit 14 after the mode switching signal is transmitted (). Here, double lines in FIGS. 3 and 4 indicate that data such as function data and address data are included.

Upon receiving the setting instruction, the setting terminal processing unit 14 generates an interrupt signal to the central processing unit 31 (), and requests the central processing unit 31 to set the data in the terminal. . Next, the central processing unit 31 sets the mode data to the function data setting mode or the address data setting mode so as to set the data,
A transmission signal Vs including data is transmitted (). The terminal device which is in the setting mode by the wireless signal from the setting device 34 writes the function data and the address data in the storage unit 22 by the transmission signal Vs. continue,
The central processing unit 31 requests the confirmation mode transmission signal Vs to be transmitted and the data set in the storage unit 22 to be returned (). When data is returned from the terminal device in response to the data return request from the central processing unit 31 (), the transmission signal Vs is transmitted so as to cancel the setting mode and shift to the normal mode (). Thus, the terminal device to which the data is set can perform normal operation. On the other hand, the central processing unit 31 transmits the setting completion notification to the setting terminal processing unit 14 after canceling the setting mode of the terminal (), and the setting terminal processing unit 14 further notifies the signal processing unit 10 of the setting processing. The setting completion notification is given ().

On the other hand, in order to confirm the data set in the storage unit 22 of the terminal device, the procedure as shown in FIG. 4 is performed. First, as in the case of setting data, the mode switch signal is transmitted from the setter 34 to the target terminal device through the wireless signal generator 13 as a wireless signal ().
The terminal device that has received the mode switching signal shifts to the setting mode as in the setting. The setting device 34 inputs a confirmation instruction to the setting terminal processing unit 14 after sending the mode switching signal ().

Upon receiving the confirmation instruction, the setting terminal processing unit 14 generates an interrupt signal to the central processing unit 31 () and requests the central processing unit 31 to confirm the data to the terminal unit. . Next, the central processing unit 31 transmits the transmission signal Vs in which the mode data is set to the function data confirmation mode or the address data confirmation mode so as to confirm the data (). The terminal device in the setting mode by the wireless signal from the setting device 34 reads the function data and the address data from the storage unit 22 and returns the data by this transmission signal Vs (). When data is returned from the terminal in response to the data confirmation request from the central processing unit 31, the central processing unit 3
1 transmits the transmission signal Vs so as to cancel the setting mode and shift to the normal mode (). Next, the central processing unit 31 uses the data returned from the terminal device to set the terminal processing unit 1
4), and the setting terminal processing unit 14 further transmits the data to the signal processing unit 10 () and displays it on the display unit 12.

As described above, the setting device 34 transmits the switching signal to the setting mode for the terminal device to which the data is set by using the wireless signal, and the data is transmitted through the signal line L.
Since the data is transmitted by the transmission signal Vs via s, it is easy to increase the directivity of the wireless signal and transmit the data only to the target terminal, as compared with the case where the data is directly transmitted to the terminal by the wireless signal. It will be. As a result, even if the distance between the terminal device and the setting device 34 is relatively large, the data to be set can be reliably transmitted.

(Embodiment 2) In this embodiment, as shown in FIG. 5, a setting device main body including other parts of the setting device 34 of the embodiment 1 using the setting terminal processing unit 14 as a setting terminal device 34a. It is independent of 34b. Setting terminal 34a
And the setting device main body 34b are connected via a wired transmission line Lw. Other configurations are similar to those of the first embodiment.

(Embodiment 3) In this embodiment, as shown in FIG. 6, instead of the wired transmission line Lw of the embodiment 2, wireless (radio wave) is used.
The transmission line is formed. Therefore, the setting terminal device 34a and the setting device main body 34b are respectively provided with wireless transmission / reception units. As a data transmission format between the setting terminal device 34a and the setting device main body 34b, a general data communication standard used in a specific low power modem or the like can be used. In this configuration, the setter body 34
There is no need to run the electric wire from b, and it has the advantage that it is easy to use, and since the mode switching signal and data are transmitted through different paths, the distance between the terminal and the setting unit main body 34a is relatively large (about several meters). ) It is possible to take. Other configurations are similar to those of the second embodiment.

[0026]

As described above, according to the present invention, when the setting operation is performed by the operation section, the wireless signal generating section for transmitting the mode switching signal to the terminal to be set by the strongly directional wireless signal and the signal line. It is provided in the setting terminal processing unit and the setting unit that transmits the function data and address data input by the connected operation unit to the central processing unit by a transmission signal having a predetermined format through the signal line. When the mode switching signal is received, it operates in the setting mode. In the setting mode, the data contained in the transmission signal from the central processing unit, which is transmitted in the above format via the signal line, is stored in the storage unit as the functional data and the address data. However, when the central processing unit receives a transmission signal including the function data and address data from the setting terminal processing unit, the function data and the Since the transmission signal including the dress data is transmitted, the wireless signal has a strong directivity and gives only the mode switching signal to the terminal device, the position of the setting device is set with respect to the terminal device to be set. The keeping time may be relatively short, and the wireless signal can be reliably transmitted to the terminal even when the distance between the terminal and the setting device is relatively large. On the other hand, the data to be set in the storage unit of the terminal device is transmitted to the central processing unit through the setting terminal processing unit and to the terminal unit through the central processing unit by using the signal line. There is an advantage that the frequency of occurrence of data transmission error is reduced regardless of the positional relationship with the device. This has an advantage that data can be set in the storage unit even when the terminal is arranged at a high place such as a ceiling and the distance from the setter to the terminal is relatively large.

The invention of claim 2 and the invention of claim 3 are
A setting device main body including an operation unit and a wireless signal generation unit and a setting terminal device including a setting terminal processing unit are separately provided, and a transmission line connecting the setting device main unit and the setting terminal device is provided.
In the invention of claim 2, it is wired and in the invention of claim 3, it is wireless. In either configuration, the setting terminal device can be separated from the setting device main body and connected to the signal line. There is an advantage that the main body can be downsized. Further, as in the invention of claim 3, in the case where the setting device main body and the setting terminal device are connected by a wireless transmission path, there is an advantage that there is no need to draw an electric wire from the setting device main body and the usability is good. is there.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram illustrating a first embodiment.

FIG. 2 is a block diagram showing a setting device used in the first embodiment.

FIG. 3 is an explanatory diagram of an operation when setting data in the first embodiment.

FIG. 4 is an operation explanatory diagram when confirming data in the first embodiment.

FIG. 5 is a schematic configuration diagram showing a second embodiment.

FIG. 6 is a schematic configuration diagram showing a third embodiment.

FIG. 7 is a schematic configuration diagram showing a conventional example.

FIG. 8 is an operation explanatory diagram showing a format of a transmission signal used in the remote monitoring control system.

FIG. 9 is a block diagram of an operation terminal device used in a conventional example.

[Explanation of symbols]

 10 signal processing unit 11 operation unit 12 display unit 13 wireless signal generation unit 14 setting terminal processing unit 22 storage unit 31 central processing unit 32 operation terminal device 33 control terminal device 34 setting device 34a setting terminal device 34b setting device body Ls Signal line Lw Transmission line

Claims (3)

[Claims] 1. A function for deciding a function of a desired terminal among a plurality of terminals which are connected to a central processing unit via a signal line in a time division multiple access system and each have an address. It is equipped with a setting device that sets address data that determines data and the address of the terminal device in the storage unit provided in the terminal device.The setting device performs the setting operation by the operation unit that performs the setting operation of the function data and the address data. When performed, a wireless signal generator that transmits a mode switching signal to the terminal to be set by a strongly directional wireless signal, and the function data and address data that are connected to the signal line and input by the operation unit are transmitted through the signal line. A setting terminal processing unit for transmitting to the central processing unit by a transmission signal having a predetermined format, and the terminal unit sets the setting mode when receiving a mode switching signal from the setting unit. In the setting mode, the data included in the transmission signal from the central processing unit, which is transmitted in the above format through the signal line in the setting mode, is stored in the storage unit as functional data or address data, and the central processing unit is set to the setting terminal. A terminal function setting method for a remote monitoring and control system, characterized in that when a transmission signal containing functional data and address data is received from a processing unit, the transmission signal containing functional data and address data is sent out on a signal line. 2. A setting device main body including an operation unit and a wireless signal generation unit and a setting terminal device including a setting terminal processing unit are separately provided, and the setting device main unit and the setting terminal device are wired data transmission. The terminal function setting method of the remote monitoring and control system according to claim 1, wherein the setting method is connected through a path. 3. A setting device main body including an operation unit and a wireless signal generation unit and a setting terminal device including a setting terminal processing unit are separately provided, and the setting device main unit and the setting terminal device perform wireless data transmission. The terminal function setting method of the remote monitoring and control system according to claim 1, wherein the setting method is connected through a path.