JP2654140B2 - Terminal function setting method of remote monitoring control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a terminal function setting method of a remote monitoring and control system for performing data transmission by time division multiplex transmission between a central control device and a plurality of terminals connected via signal lines.

[Prior art]

As shown in FIG. 11, this type of remote monitoring and control system includes a central control device 31, a plurality of monitoring terminals 32 having a unique address set, a control terminal 33, a wireless relay terminal 34, external interface terminal 35, which the pattern setting terminal unit 36 connected through a pair of signal lines 37, switches S ₁ to S _4, such as wall switches connected as monitoring inputs to the monitoring terminal device 32 Have been. As shown in FIG. 12 (a), the transmission signal Vs transmitted from the central controller 31 to the signal line 37 is a start pulse signal S indicating the start of signal transmission.
T, mode data signal MD indicating signal mode, each terminal 32
Address data signal AD for transmitting 8-bit address data for calling a to 36, the control data signal CD for transmitting the control data for controlling the load L ₁ ~L _4, check sum data signal
This is a bipolar (± 24V) time-division multiplexed signal composed of CS and a return signal period WT for setting a return period from each of the terminals 32 to 36, and data is transmitted by pulse width modulation. When the address data of the transmission signal Vs received via the signal line 37 matches the set address data, each of the terminals 32 to 36 captures the control data of the transmission signal Vs and returns the transmission signal Vs. In synchronization with the signal period WT, the monitoring data signal is returned as a current mode signal (a signal transmitted by short-circuiting the signal lines 37 via a suitable low impedance). The central control unit 31 also includes a dummy signal transmitting unit that constantly transmits a dummy transmission signal in which the mode data signal MD is set to the dummy mode, a monitoring terminal 32, a wireless relay terminal 34, an external interface terminal 35, and a pattern. When an interrupt signal Vi as shown in FIG. 12 (b) returned from any of the setting terminals 36 is received, the terminal that generated the interrupt
There is provided an interrupt processing means for detecting 32 to 36 and accessing the terminals 32 to 36 to return monitoring data. The central control unit 31 also uses the monitoring data returned from the monitoring terminal 32 or the wireless relay terminal 34, the external interface terminal 35, and the pattern setting terminal 36 to the central control device 31 as described above. The control data to be transmitted to the control terminal 33 for controlling the corresponding loads L _{1 to} L ₄ is prepared, and the control data is transmitted to the control terminal 33 via the signal line 37 in a time-division multiplex manner to load the control data. and controls the L ₁ ~L _4. The wireless relay terminal 34 includes an optical wireless transmitter Y,
This is a terminal for relaying data of an optical wireless system comprising an optical wireless receiver X and a wireless signal line 38. The optical wireless transmitter X receives an optical signal transmitted from an optical wireless transmitter Y, and receives the received optical signal. The received data is received via the wireless signal line 38, and the data is transferred to the central controller 31. The external interface terminal 35 is a terminal that performs data transmission with the external control device 39, and the pattern setting terminal 36 transmits the pattern control data input from the data input unit 40 to the central control device 31. It is a terminal that transfers. The monitoring terminal 32 and the control terminal 33 provided in the distribution board 41 or the relay control board 42 are set to the distribution board agreement dimensions, and the control output thereof is used to control the load control remote control. A relay (latching relay that can be turned on and off by a hand switch) 43 is controlled. By the way, in the above-mentioned conventional configuration, there are terminals having various functions, and even the same type of terminals may have different input / output polarities and signal formats. Therefore, an interface is separately provided for each terminal. And the number of parts management points increases. Further, in the conventional configuration, the function cannot be changed after the terminal device is assembled, and if the function is to be changed after installation, the terminal device must be replaced. To solve such a problem, the present inventor
An input / output unit for inputting monitoring data and outputting control data is provided for the signal processing unit that controls transmission and reception of the transmission signal described above, and the operation of the signal processing unit and the polarity of the input / output unit are appropriately given parameters. We have proposed a terminal that can be set. The parameters are set in a non-volatile storage unit, and the contents of the storage can be rewritten by a wireless signal from a setting device provided separately from the terminal device. The parameters that can be set in the storage unit include, for example, an address unique to the terminal, a terminal type (for monitoring, control, etc.),
Input polarity (positive logic, negative logic), input latch mode (rising latch, change point latch, latch with change point correction, etc.), input sampling time (number of times), output polarity (positive logic, negative logic), output mode (single Output, latching relay drive output, one-shot output, flicker output, etc.), output time (relay drive time), reply output mode (three-way setting, bit division, etc.), dimming mode (fluorescent, incandescent, inverter, etc.) This corresponds to the delay time of temporary lighting or delayed lighting, etc., and the elements in parentheses are switchable elements.

[Problems to be solved by the invention]

In order to set various functions as described above with a wireless signal from the setting device, the wireless signal must include at least the following elements. That is, a management code for selecting a setting mode for writing to the storage unit of the terminal device or a confirmation mode for performing only reading, a purpose code for setting or confirming only a desired function, and a setting representing the contents of the function. The three elements of the data code are mandatory. In the conventional configuration, since the data corresponding to the setting data code is stored in the storage unit of the terminal together with the data corresponding to the purpose code, when performing the function setting according to the contents of the storage unit in the terminal, It is necessary to determine the function to which the data read from the storage unit corresponds, and then to set the contents of the function. In addition, when checking a function, it is necessary to perform a procedure of searching for the position of the function to be checked in the storage unit, and then reading out the contents of the function. That is, at the time of setting, it is necessary to determine the target function, and at the time of confirmation, it is necessary to search for the function.
There was a problem that the processing load on the terminal was large. SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and store a function number assigned to each function type for a terminal that can share various functions and switch functions. The terminal function setting method of the remote monitoring and control system that makes the contents of a specific absolute address in the storage unit the contents of each function by making it correspond to the absolute address of the unit. It is intended to provide.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a management code for selecting one of a setting mode for writing data in a storage unit and a confirmation mode for reading data in a storage unit in a wireless signal transmitted from a setting device to a terminal. The function number includes an object code specifying a function number assigned to each type of function that can be set in each terminal and a setting data code specifying the setting contents of each function. Is made to correspond one-to-one. Also, it is desirable to provide a call signal for setting the terminal in a receivable state at the head of the wireless signal transmitted from the setting device to the terminal. Further, the wireless signal transmitted from the terminal device to the setting signal may include a response signal for notifying that the terminal device has received the paging signal. In addition, collation code data corresponding to the use of the terminal device may be set in advance in the terminal device, and the response signal may be used as the collation code data. The collation code data according to the use of the terminal device is set in the terminal device in advance, and a collation code corresponding to the collation code data is included in a wireless signal transmitted from the setting device to the terminal device. The content of the wireless signal may be regarded as valid only when the collation code data and the collation code match. Further, the wireless signal transmitted from the setting device to the terminal device may include a switch signal for selecting whether or not the collation between the collation code and the collation code data is necessary.

[Action]

According to the configuration of the first aspect, the function numbers assigned to the respective functions that can be set in the terminal device are associated one-to-one with the absolute addresses of the storage unit. Since the absolute address of the storage unit is specified by the number, the terminal only needs to write data corresponding to the target code included in the wireless signal as address data and write data corresponding to the setting data code at the address. Further, when the function is set according to the contents of the storage unit in the terminal device, the contents of each address may be simply assigned to each function. Further, when confirming the contents of the storage unit, a function number corresponding to the function to be confirmed may be designated and the contents of the address corresponding to the function number may be read, so that the process of searching becomes unnecessary. is there. That is, complicated processing such as determination and search in the terminal is not required, and the burden on the terminal is reduced. Further, in the configuration according to the second aspect, the call signal for setting the terminal device in a receivable state is provided at the head of the wireless signal, so that the terminal device is switched to the wireless signal reception state even when the terminal device is performing another process. can do. For example, if the presence or absence of a call signal is periodically detected while the terminal device performs signal processing on a transmission signal transmitted via the signal line, the wireless communication is performed when the call signal is received. The signal can be received prior to the transmission signal. Furthermore, in the configuration according to the third aspect of the present invention, a response signal is returned from the terminal device in response to a call signal from the setting device, and whether the function setting can be performed at that time can be confirmed on the setting device side based on the presence or absence of the response signal. Therefore, it is possible to easily determine whether the use of the setting device is valid or invalid. If the verification code data corresponding to the use of the terminal device is set in advance in the terminal device, and the verification code data is used as a response signal, the verification device can receive the verification code data of the terminal device receiving the wireless signal. Since it is possible to know, the setting device can determine whether the terminal to be targeted is receiving a wireless signal or check the collation code data of the terminal. Further, in the configuration according to claim 5, the collation code corresponding to the collation code data of the terminal is included in the wireless signal from the setting device, and the content of the wireless signal is validated when the collation code matches the collation code data. If the collation code data is set to correspond to the input / output device connected to the terminal, the correspondence between the collation code and the collation code data can avoid incorrect settings that do not correspond to the input / output device. it can. Furthermore, if a switch signal for selecting whether or not the collation code included in the wireless signal is required to be collated with the collation code data set in the terminal is included in the wireless signal, when performing a function setting that does not require collation, However, it is also possible not to perform the collation processing.

【Example】

A terminal 10 shown in FIG. 1 corresponds to each of the terminals 32 to 36 described in the section of the prior art, and includes a transmitting / receiving unit 11 for transmitting and receiving a transmission signal Vs transmitted via a signal line 37. A signal processing unit 12 that performs various types of processing in the terminal device 10, an input / output unit 13 that connects input / output devices to the signal processing unit 12, and processing contents in the signal processing unit 12 and parameters related to functions of the input / output unit 13. And a light-emitting unit 16 as a receiving unit and a light-emitting unit 16 as a transmitting and receiving unit for transmitting and receiving infrared wireless signals to and from a setting device 20, which will be described later. The signal processing unit 12 is composed of a microprocessor. When the address data is input from the central control unit 31, the signal processing unit 12 compares the address data with the address data set in the storage unit 14. Depending on the state, the control signal corresponding to the control data is sent out, or the monitoring signal is synchronized with the return signal period and the central control unit
Return to 31. The storage unit 14 is an E ² PROM as a non-volatile storage device capable of holding data without power supply.
Is used. The storage unit 14 functions as a kind of memory switch for switching between the processing performed by the signal processing unit 12 and the function of the input / output unit 13, and switches various functions as described in the section of the related art. Is available. The storage unit 14 is also provided with a program area for determining the operation of the signal processing unit 12. On the other hand, the setting device 20 includes a light-emitting unit 21 and a light-receiving unit 22 for transmitting and receiving a wireless signal to and from the terminal device 10. The wireless signal transmitted from the light-emitting unit 21 is obtained by processing an input from the operation unit 23 by signal processing. Created by processing in the unit 25. The wireless signal received by the light receiving unit 22 is processed by the signal processing unit 25 and displayed on the display unit 24. The wireless signal has a setting mode and a confirmation mode.
The setting content of the storage unit 14 can be changed to the content set in the above, and the setting content of the storage unit 14 can be displayed on the display unit 24 in the confirmation mode. The terminal device 10 basically operates as follows. First, when the power is turned on, the data in the storage unit 14 is read and the terminal device 10 is read.
Set the function of. Next, a normal operation is performed according to the set function, and it is detected whether or not a wireless signal has been received during that time. When the wireless signal is received, if the mode is the setting mode according to the mode, the data is written to the storage unit 14, and then the data in the storage unit 14 is read out and returned to the setting device 20 as a wireless signal. When the wireless signal from the setting device 20 is in the confirmation mode, the terminal device
In 10, data is read from the storage unit 14 and the setting device 20 is read.
And return it as a wireless signal. In both the setting mode and the confirmation mode, the setting device 20 displays data upon receiving a wireless signal so that the user can confirm the data. As described above, the setting and confirmation of the storage content of the storage unit 14 by the setting device 20 can be performed. The operation will be described more specifically. The wireless signal Sr transmitted from the setting device 20 to the terminal device 10 basically includes a management code SL and an object code O as shown in FIG.
J and setting data codes DT ₁ and DT ₂ . That is, the management code SL selects between the setting mode and the confirmation mode described above, and the objective code OJ selects which function is to be set or confirmed, and sets the setting data codes DT ₁ , DT
₂ gives the contents for the function specified by the object code OJ. Here, the objective code OJ is, as shown in FIG.
A terminal number NT having the same value for the corresponding terminal 10;
A function number NF is provided for each type of function that can be set in the terminal device 10. Therefore, for example, when it is desired to associate a terminal 10 provided with a switch with a terminal 10 provided with a load, the same terminal number NT is given to both terminals 10, one is used as a monitoring terminal, and the other is used as a monitoring terminal. It only has to be set as a control terminal. On the other hand, the absolute address of the storage unit 14 is set so as to match the above-mentioned object code OJ. That is, as shown in FIG. 4, the storage unit 14 is provided with a block area for each terminal number, a slot corresponding to the function number is provided in each area, and the setting data is stored in each slot. Data corresponding to the codes DT ₁ and DT ₂ are written. Each slot in each area is fixedly corresponding to the function number NF, such as address 0 in each area, the address of the terminal 10, address 1 the terminal type, address 2, and the like. Have been assigned. Therefore, if the absolute address of the storage unit 14 is specified using the value specified by the object code OJ, it means that the slot corresponding to the terminal number NT and the function number NF specified by the object code OJ is specified. It is. As described above, since the terminal number NT corresponds to the number of the area of the storage unit 14 and the function number NF corresponds to the address of the slot in each area, the setting when reading / writing to the storage unit 14 is performed. The purpose code OJ of the wireless signal Sr from the device 20 may be simply designated as the absolute address of the storage unit 14. That is, unlike the conventional configuration, the terminal device 10 does not need to perform the condition determination, and the processing load on the terminal device 10 is reduced. When the transmission signal is transmitted from the central control unit 31, the slot in which the address is written is searched for each area, and if the address matches the address transmitted from the central control unit 31, the content of the area is determined. Therefore, the function of the terminal device 10 may be set to perform a predetermined operation. By the way, when a large number of functions can be set to one terminal device 10 as described above, for example, the terminal device 10 to which a wall switch is connected as a monitoring input is provided with a display element indicating a lighting state of a load as a control output. However, the load control terminal 10 may include a latching relay as a control output. The display element receives a so-called single output as a control output so that if it is turned on, the lighting state is continued until the next turn-off control is performed, but the latching relay is controlled by a pulse having a fixed time width. It receives a so-called latching output as a control output. In a latching relay, when a single output is input instead of a latching output, the latching relay may be destroyed by energization for a long time. Such a problem is caused by the fact that the function setting does not correspond to the terminal device type. Therefore, the problem is solved by restricting other function settings according to each function. Therefore, the verification code data is set in the terminal device 10 in advance according to the use of the terminal device 10 (for example, the terminal device type). For example, 0 corresponds to a wall switch corresponding to a load one-to-one, 1 corresponds to a switch when the load forms a group of one floor or one room, and 1 when a load forms a single pattern. Is 2, if the monitoring input is a no-voltage contact input, 3
When the control output is a relay drive output, collation code data corresponding to each application is set, such as 4, for example. If the collation code data is changed according to the use of the terminal device 10 and the wireless signal from the setting device 20 includes the collation code corresponding to the collation code data, the fifth
As shown in the figure, it can be determined whether or not to perform the function setting depending on whether or not the collation code matches the collation code data. In other words, for an incorrect function setting, the matching code can be prevented from matching, thereby preventing an incorrect setting. As described above, the collation code data is necessary when setting the function of the terminal device 10, but is unnecessary when setting the address of the terminal device 10. Therefore, it is desirable to select whether collation is necessary or not according to the setting contents. Therefore,
A switch signal designating whether or not to collate the collation code data with the collation code is included in the wireless signal from the setting device 20. If a switch signal is included in the wireless signal, as shown in FIG. 6, when it is specified by the switch signal that collation is required, it is checked whether the collation code matches the collation code data, and the switch signal is checked. When it is specified that collation is unnecessary, the function setting can be performed unconditionally. As described above, since the necessity of collation can be selected according to the contents of the function to be set by providing the switch signal, there is an advantage that unnecessary collation processing can be reduced. The terminal device 10 normally transmits and receives a transmission signal to and from the central control device 31.Since the process for the setting device 20 is an interrupt process, the terminal device 10 receives a wireless signal from the setting device 20. If not, the above-described processing cannot be performed. Therefore, it is desirable to add a calling signal to the head of the wireless signal and switch the terminal device 10 to a reception state of the wireless signal. By providing such a call signal, processing as shown in FIG. 7 can be performed. That is, the terminal device 10 detects the presence or absence of a call signal during the signal transmission / reception processing for the transmission signal, and if there is a call signal, interrupts transmission / reception of the transmission signal and performs processing for receiving a wireless signal. When the setting and confirmation of the function are completed, it goes without saying that the process returns to the transmission / reception processing of the transmission signal. When trying to set various functions of the terminal device 10 using infrared rays using the setting device 20, in the following cases, the desired function may not be set in the terminal device 10. That is, if the setting device 20 is too far from the terminal device 10,
This is the case where the direction of the setting device 20 is shifted, the case where there is an obstacle between the terminal device 10 and the setting device 20, and the case where power is not supplied to the terminal device 10. Therefore, as shown in FIG.
A response signal is included as a wireless signal from the terminal device 10 with respect to the above-described call signal. If a response signal is provided, the setting device 20 determines whether or not there is a response signal within a predetermined time as shown in FIG. Can be determined. If the response signal is not returned, it is assumed that the function setting was not performed normally, and appropriate measures may be taken, and then the function setting may be performed. It can be set to. The above-described collation code data can be used as the response signal. In this case, as shown in FIG.
The collation code data returned as a response signal to the setting device 20 is collated with the collation code of the setting device 20, and if they match, it can be determined that the setting has been completed. If they do not match, the function setting operation may be interrupted at that time. In this way, it is possible to know at an early stage of the setting operation that the function setting cannot be performed due to the mismatch of the verification codes. Also, if the same function is to be set for a plurality of terminals 10 having different verification code data, it is determined whether the verification code data returned as a response signal is of a type that can be set, and setting is possible. If it is the same, the verification code data is used as the verification code from the setting device 20 for each terminal device.
It may be transmitted to 10. Furthermore, if the collation code data of the terminal device 10 is unknown, the collation code data returned as a response signal is transmitted from the setting device 20 as the collation code at the time of setting, so that the collation code data of the terminal device 10 can be obtained. Terminal device 10 even if unknown
It is possible to perform the setting work of the function.

【The invention's effect】

As described above, the present invention provides a management code for selecting one of a setting mode for writing data to a storage unit and a confirmation mode for reading data in a storage unit in a wireless signal transmitted from a setting device to a terminal, The function numbers, including a purpose code that specifies a function number assigned to each type of function that can be set in the device and a setting data code that specifies the setting contents of each function, are stored one-to-one with the absolute addresses of the storage unit. When writing the contents of a function to the storage unit, the absolute address of the storage unit is specified by the function number, so that the terminal device stores the data corresponding to the purpose code included in the wireless signal. Is used as address data, and data corresponding to the setting data code may be written to the address. Further, when the function is set according to the contents of the storage unit in the terminal device, the contents of each address may be simply assigned to each function. Further, when confirming the contents of the storage unit, a function number corresponding to the function to be confirmed may be designated and the contents of the address corresponding to the function number may be read, so that the process of searching becomes unnecessary. is there. In other words, there is an advantage that complicated processing such as determination and search in the terminal is not required, and the burden on the terminal is reduced. Also, if a call signal for setting the terminal in a receivable state is provided at the tip of the wireless signal transmitted from the setting device to the terminal, even when the terminal is performing other processing,
This has the advantage that it can be switched to the reception state of a wireless signal. For example, if the presence or absence of a call signal is periodically detected while the terminal device performs signal processing on a transmission signal transmitted via the signal line, the wireless communication is performed when the call signal is received. The signal can be received prior to the transmission signal. Further, if the wireless signal transmitted from the terminal device to the setting signal includes a response signal notifying that the terminal device has received the call signal, it is set that the function cannot be set at that time depending on the presence or absence of the response signal. Since the confirmation can be made on the device side, it is possible to easily determine whether the use of the setting device is valid or invalid. In addition, if the verification code data corresponding to the use of the terminal is previously set in the terminal and the response signal is used as the verification code data, the verification code data of the terminal receiving the wireless signal is set by the setting device. The setting device can determine whether or not the terminal to be targeted is receiving a wireless signal, and can check the verification code data of the terminal. The collation code data according to the use of the terminal device is set in the terminal device in advance, and a collation code corresponding to the collation code data is included in a wireless signal transmitted from the setting device to the terminal device. If the content of the wireless signal is regarded as valid only when the verification code data and the verification code match, by setting the verification code data to correspond to the input / output device connected to the terminal, By checking the correspondence between the collation code and the collation code data, it is possible to avoid an erroneous setting that does not correspond to the input / output device. In addition, if the wireless signal transmitted from the setting device to the terminal includes a switch signal for selecting whether or not the collation of the collation code and the collation code data is required, the collation process is performed when setting a function that does not require collation. It can be avoided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an operation explanatory diagram showing an example of a format of a wireless signal from a setting device to a terminal in the above, and FIG. 3 is a configuration example of an objective code in the same. FIG. 4 is an operation explanatory diagram showing an example of the configuration of the storage unit in the above, and FIG.
FIG. 10 to FIG. 10 are explanatory diagrams of the above operation, FIG. 11 is a schematic configuration diagram of a remote monitoring control system according to the present invention, and FIG.
The figure is an operation explanatory diagram showing the format of a transmission signal of the above. 10 terminal device, 14 storage unit, 20 setting device, 31
Central control unit, 32 ...... monitoring terminal unit, 33 ...... controller terminal unit, DT _1, DT ₂ ...... setting data code, NF ...... function number, N
T: Terminal number, OJ: Purpose code, SL: Management code, Sr: Wireless signal.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical indication H04Q 9/14

Claims (6)

(57) [Claims] A plurality of terminals to which addresses are respectively set are connected to a central control unit via a pair of signal lines, and a central control unit and the terminal unit communicate with each other by a transmission signal transmitted from the central control unit. The data is time-division multiplexed, and each terminal has a storage unit capable of storing data relating to the function of the terminal without power supply, a signal processing unit for setting the function of the terminal based on the data in the storage unit, and light. A receiving unit for receiving a wireless signal transmitted as a transmission medium, and a transmitting unit for transmitting a wireless signal, generating data to be written in the storage unit, transmitting the data as a wireless signal, and receiving a wireless signal from a terminal device In a remote monitoring control system in which a setting device to be provided is provided separately from the terminal device,
A wireless signal transmitted from the setting device to the terminal device has a management code for selecting one of a setting mode for writing data in the storage unit and a confirmation mode for reading data in the storage unit, and a function that can be set in each terminal device. And a setting data code for specifying the setting contents of each function, wherein the function numbers correspond one-to-one to the absolute addresses of the storage unit. Characteristic terminal setting method for remote monitoring and control system. 2. The remote monitoring and control system according to claim 1, wherein the wireless signal transmitted from the setting device to the terminal has a call signal for setting the terminal in a receivable state at the head. Terminal function setting method. 3. The remote monitoring and control system according to claim 2, wherein the wireless signal transmitted from the terminal to the setting signal includes a response signal indicating that the terminal has received the paging signal. Terminal function setting method. 4. The terminal device according to claim 3, wherein collation code data corresponding to the use of the terminal device is preset, and said response signal is collation code data.
3. A terminal function setting method of the remote monitoring and control system according to 1. 5. The terminal has preset collation code data corresponding to the use of the terminal, and the wireless signal transmitted from the setting device to the terminal includes a collation code corresponding to the collation code data. The remote terminal according to any one of claims 1, 2 and 3, wherein the terminal unit regards the content of the wireless signal as valid only when the collation code data and the collation code match. Terminal function setting method for monitoring and control system. 6. The remote monitoring system according to claim 5, wherein the wireless signal transmitted from the setting device to the terminal device includes a switch signal for selecting whether collation between the collation code and the collation code data is necessary. Terminal function setting method for the control system.