JPS62123598A - Transmission system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a transmission system that can be suitably implemented in, for example, a remote control device.

Back Bag Technology A block diagram of a conventional remote control device is shown in FIG. The remote control device 1 basically includes a transmitting means 2, a receiver 123, and a load control means 4. Load control means 4
controls the load 5, displays the value within the control on the display 6, and displays the value within the control on the peripheral device 7, such as a printer.
to drive.

The transmitting means 2 includes an operating section 8, a transmitting data buffer 9 that stores transmission data from the operating section 8, and a transmitting section that reads the transmitting data stored in the transmitting data buffer and transmits it to the receiving circuit section 3. 1()'', a receiving section 11 that receives transmission data from the transmitting section 10 again, and a transmission control section 12.
including. The transmission signal from the transmission g10 is transmitted, for example, by radio waves or infrared rays.

The receiving means 3 includes a receiving section 13, a receiving equal data buffer 14 for storing received data from the receiving section 13, and a receiving section 13;
A data memory 15 in which check data of 73 data is stored, a comparator 16 that compares the received check data with the received data, and a reception control unit 1 that controls the comparator 16.
7, the received data is compared with the reception check data by the comparator 16, and if they do not match, the receiver 1 of the transmitting means 2
1 and a transmitter 18 that returns the erroneous signal.

The load control means 4 includes a data memory 20 in which a plurality of execution command data are stored, a comparator 21 that compares the data received from the comparator 16 and the execution command data, and a buffer counter 22 that counts the number of data. Parameter data bar 7 in which control data from the comparator 21 is stored
23 and an instruction decoding section 25 that converts control data into an instruction signal to the control section 24.

Note that in the remote control device 1 in FIG.
If the transmission method from the receiver is a bidirectional transmission method, the receiver 11,
Although a transmitter 18 is provided, in the case of a one-way transmission system, the receiver 11 and the transmitter 18 are omitted.

In such a conventional remote control device 1, it is necessary to transmit control commands correctly. For this purpose transmission 11
Measures to prevent transmission errors as shown in Table 1 have been devised.

Table 1 Among the error prevention measures shown in Table 1, for example, in the case of a bidirectional transmission system, the operations shown in FIGS. 8 and 9 are carried out. That is, first, referring to Figure 8,
The operation of the transmitting means 2 will be explained. First step n1
Then, the process moves to step n2, and the history making section 8 is operated. Next, the process moves to step 3 and the operation code is sent to the transmission data buffer 9. At the same time, an operation start signal indicating that the rubbing section 8 has been operated is given to the transmission control section 12, and as a result, a control signal for controlling the transmission section 10 at the step port 4 is given from the transmission 1 control 812.

As a result, in step n4, the command data stored in the transmission data buffer 9 is sent to the transmission section 10. Next, the process moves to step n6, and data is transmitted from the transmitter 10 by radio waves or infrared rays.

Next, proceeding to step n7, the transmitting section 1B of the receiving means 3
A transmission result is received by the receiving unit 11 from the above. Then, in step n8, it is determined whether the transmission result status is correct or not. If it is not correct, step 11 is performed again.
Move to step 4 and send out the transmission data.

If it is correct in step 118, the process moves to step n9 and the operation of the transmitting means 2 ends.

Next, the operation of the receiving means 3 is shown in FIG. step m
1 to step m2, the receiving section 13 receives command data. Next, the process moves to step m3, and the command data is sent to the reception data buffer 14.

Next, moving to step signal 4, the receiving section 13 receives the reception control section 1.
A reception start signal is given to step m5.
In step II6, the reception control unit 17 controls the comparator 16, and the reception data and reception check data are compared in step II6. If the received data and the check data do not match, the process moves to step +n7, and a control signal indicating that the transmission is abnormal is given to the transmitter 18. Then, in step In8, the transmission fS unit 18 transmits a symbol indicating that the transmission is abnormal.

If the received data and the received (1 check data) match in step m6, critical data is sent to the load control means 4 in step m9.Then, in step m1o, the transmission section 18 confirms that the transmission is normal. A control signal indicating that the transmission 4y is normal is given in step m8, and a signal indicating that the transmission 4y is normal is sent from the transmitter 18 in step m8, and the operation ends in step l1111.

In such a bidirectional transmission system, since correct transmission is performed, retransmission is repeated, so that reliable transmission is performed. However, in order to perform bidirectional transmission, it is necessary to provide transmitting and receiving sections 10, 11, 13, and 18 for each of the transmitting means 2 and receiving means 3, which increases the size of the apparatus and increases costs.

Therefore, in order to have a simple, compact, and inexpensive configuration, it is required that the remote control device 1 be realized by only one-way transmission from the transmitting means 2. In this case, in order to improve the accuracy of transmission, the transmitted data is processed to reduce the effects of noise, etc., and as shown in Table 1, the transmitted data is It is essential to keep the error rate as low as possible.

Therefore, for example, a unidirectional repetitive transmission system shown in FIG. 10 is used. To explain the operation in this one-way repetitive transmission method, the process moves from step p1 to step p2, where the receiving unit 13 receives command data,
In step p3, the command data is sent to the receiving data buffer 14.Next, the process moves to step p4, where a reception start signal is given to the reception control section 17, and step p5
The comparator 16 is controlled at . In the case of this one-way repeat transmission method, the data memory 15 first stores the first received data memory 20, and then the second
Second reception f: Received data from data buffer 7a 14,
The first received data, that is, the repeated transmission data as above, are compared in step p6, and when they match, the process moves to step p7, where command data is sent to the load control means 4, and the operation ends in step 1]3. If the data does not match in step p6, it is determined that there is an error in the transmission, and the data is not sent to the load control means 4, and the operation ends in step p8. In this way, false alarms due to incorrect transmission data are prevented.

Conventional remote control device! The operating procedure of the 11 load control means 4 is shown in FIG. The process moves from step q1 to step q2, where the command data from the reception circuit 3 is read. Then, proceed to step q3, and data memory 2
The execution command data stored in 0 is compared with the command data from the receiving means 3.

Next, the process moves to step q4, and it is determined whether or not they match. If they do not match, the process moves to step q5, where the data is sent to the parameter data bar 7a23, and from step q5, the process returns to step q2. The next instruction data is read.

If they match in step q4, the process moves to step q6, where an operation execution instruction is given to the instruction decoding unit 25, and in step q7, the instruction decoding unit 25
converts the command data into a control signal to the control unit 24, in step q8, the control unit 24 is instructed to operate based on the control signal of the command decoding unit 25, and in step q9, the control unit 24 is instructed to operate based on the control signal. 24 controls execution of the load 5, display 8, peripheral device 7, etc.

Then, the work ends at step qlo.

Note that the control command data here is, for example, ON1 of the load.
It consists of execution command data that instructs operations such as 0FF, etc., and parameter data such as address data that instructs which load or display device to use.

With such a conventional configuration of the load control means 4, it is possible to control a single load or control a plurality of loads in a low control mode.
sets each code data as a different code,
It is possible to transmit single-length code data, such as 8-bit data.

In the case of this single data transfer, if a transmission error is detected using a repeat transmission method, the command data is not transmitted from the receiving means 3 to the load control means t, and the load control means 4
No erroneous control commands will be input to the side. However, the t)t-code cannot be applied when a large number of control modes are required or when it is desired to control a large number of loads. In this case, it is necessary to transmit the control command as code data of multiple lengths, which is a combination of the li-code and parameter data. In this case, for example, in the conventional repetitive transmission method, if the repetitively transmitted data contains the same error, the comparison results of the repeatedly transmitted data will match, so the erroneous control command will be transmitted to the load control means 4.
It will be sent out. If an execution command among the control commands is sent by mistake, the load control means 4 may operate abnormally or become unable to accept the next control command.

Similarly, in phase inversion transmission, there is a problem in that erroneous data is sent to the first stage t of the load control T, causing results such as abnormal operation.

If such a situation occurs, the two-way control operation function will no longer work, so this problem will be solved.

(Assuming that = j m, the load control means 4 takes measures against this by using the following configuration. In other words, ■ prevents the execution command from being accepted. For this purpose, all execution command sources and A comparison is made with the instruction data. (If the correct execution instruction data is not accepted, the parameter data of the accepted execution instruction is cleared and the buffer counter is reset to O).

By doing this, the following parameters can be accepted correctly. ■Improve the instruction decoding section.

In other words, the next control command is correctly sent to the $control unit.
J that can be converted into a number: It is no good to leave it as is. In this way, the load control T=stage is set to 1. Error checking for control commands must be performed in consideration of the combination of various commands. This kind of thing is caused by the load control means.
This causes the configuration to become complicated.

Purpose The purpose of the present invention is to solve the technical problems described in the following, and to be able to normally control the load 1 without checking the load error, and in a simple cycle. Edeshikara 1
Provided is a transmission method capable of transmitting force direction. :And.

Embodiment FIG. 1 is a block diagram of a remote control device according to an embodiment of the present invention. This remote control device rrL30 basically includes a transmitting means 31, a receiving means 32, and a load control means 33 for controlling the load and the like. The transmitting means 31 includes an operation section 34.
, a transmission data buffer 35 that stores transmission data from the operation unit 34, a data memory 3G that stores reset command data, and a switch 38 that switches between transmission data and reset command data and sends it to the transmission unit 37. , a transmission control unit 39 that controls the switch 38 and the transmission unit 37
including. The transmitter 37 transmits a transmission signal using, for example, radio waves or infrared rays.

The receiving means 32 includes a receiving section 40, a receiving data buffer 41 that stores received data from the receiving section 40, a data memory 42 that stores reset command data, and a comparator that compares the received data and the reset command data. 43, and a receiver control section 44 that controls the comparator 43.

The load control means 33 includes a data memory 45 in which execution command data is stored, a comparator 46 that compares the data received from the comparator 43 and the execution command data, a buffer counter 48 that counts the number of data, and Parameter data store 7a 4 in which control data from the device 43 is stored
7, and an instruction decoding section 53 that converts control data into a control command signal to the control section 52. The control unit 52 controls the load 49, the display 50, and peripheral bags rrL51 such as a printer based on the control command signal.

FIG. 2 is a 70-chart showing the operation of the transmitting means 31. Moving from step 1 to step 2, the operating section 34
is manipulated. Next, the process moves to step 3, and the operation food is sent to the transmission data buffer 35. At the same time, the process moves from step 2 to step 4, and the switch 338 is switched to the data memory 3G side. Next, the process moves to step 5, and reset command data is sent to the transmitter 37. Next, in step 6, feed (J control section 39
The transmitter 37 is controlled by the transmitter 37, and reset command data is transmitted from the transmitter 37 in step 7. Then move on to step 8.

In step 8, after the reset command data is sent in steps 4 to 7, the switch 3
8 is switched to the transmission data buffer 35 side, and control command data is sent from the transmission data buffer 35 to the transmitter 37 in step 9.

If the operation unit 34 is to be operated continuously, step k
At l 1 , the operation tTls 34 is operated again, at step k12 the operation code is sent to the transmission data buffer 35 , and at step klO (1), the control command data is sent from the transmission data buffer 35 to the transmission section 37 . A series of operations from step 11 to step 12 to step klO are performed when the operating section 34 is continuously operated.

The process moves from step klo to step k13, where the final control command data is sent to the transmitter 37, and then, in step 14, the switch 38 is switched to the data memory 3G side. As a result, in step 15, reset command data is sent to the transmitter 37, and in step k1
At step k18, the transmitting section 37 is activated by the control section 39, and at step k17, reset command data is transmitted from the transmitting section 37 to the receiving means 32, and at step k18, the transmitting operation of the transmitting means 31 is completed.

By such a transmission operation from the transmitting means 31, the transmission signal has reset command data si, s2 added before and after the control command data T, as shown in FIG. ! Units are constructed.

FIG. 4 is a flowchart showing the operation of the receiving means 32. Moving from step 1 to step 2, the receiving section 40
The command data is received at step C3, and the command data is sent to the reception data buffer 41 at step C3. At the same time, in step i'4, a reception start instruction number 43 is given to the reception control section 44, and in step no. 5, the comparator 43 is activated. Then, in step Gallo, the comparator 43 compares the received data with the reset command data stored in the data memory 42. Since command data is added to the reset command data at the beginning of the command data, the process moves from step C6 to step 7, and a clear signal is sent from the comparator 43 to line L1.
It is sent to the buffer counter 4)3 via the line I, 2, and to the instruction decode g53 via the line I,2. As a result, the buffer counter 48 is reset and the instruction data in the instruction defood section 53 is initialized. Then return to Step No. 2 again.

After that, the rule is 0! I command data is a step! ! Steps 2 to 5 are passed sequentially, and in step C6, a comparison with the reset command data is performed, and since there is no match (1), the process goes from step NO to STEP! 8, control command data is sent to the comparator 46 of the load control means 33. This control command data includes execution command data that instructs the movement IY of the load such as 0N10FF, and the display 5 which indicates which 4 loads.
It is composed of parameter data such as address data indicating whether it is 0 or the like.

After that, the reset command data is received by the receiving unit 40,
After the steps from step 72 to step NO, a clear signal is sent to the buffer counter 48 via the line L1 and is also sent to the instruction decoding section 53 via the line L2.

As a result, the buffer counter 48 is reset and the instruction data in the instruction decoding section 53 is initialized. Then, in step No. 9, the processing of the sending (g signal in units of one signal) is completed.

In this way, the receiving means 32 receives the transmission signal from the transmitting means 31, performs the operations of input step, C1 to step C8, and transmits the contents to the load control means 33 when it is control data. sending out,
When the data is reset command data, a clear signal is sent, the buffer counter 43 of the load control means 33 is reset, and the command decoding section 53 is initialized.

By doing this, even if incorrect control unit data is given and input to the load control T first stage 33 after the reset signal is received, the clear signal will be signaled by the reset command data added after the control command data. This allows the load control means 33 to be maintained in a normal state. Furthermore, in the reception/W+ stage 32, there is no need to check whether the command data has been transmitted correctly, and the configuration of the reception control section 4.1 can be simplified.

Note that the load control T first stage 33 has the same configuration as the load control 'T first stage of a conventional remote control device, performs the same operation, and controls the load 49, the display 50, and peripheral devices 51 such as the R7 printer.
control. After that, the clear signal l resets the Hapa Sofa power supply C8 and initializes the command decoding section 53, after which control command data is input to the comparator 46. This comparator 46 compares the execution command data stored in the data memory 45 with the control command data, and if the data is parameter data, the parameter data is sent to the parameter data buffer 47. When the control command data is execution command data, the natural command data is sent to the command decoding section 53, and the number of execution command data is counted by the buffer counter 48. The instruction defood section 53 converts the execution instruction data into a control instruction signal to the control section 52 and sends it to the control section 52 together with the address read from the parameter data buffer 47. As a result, the load 49, display 50, etc. corresponding to the address are controlled by the control section 52.

Note that parameter data is read out from the parameter data buffer 47 to the instruction decoding section 53 in accordance with the count of the buffer counter 48. Also, after the instruction decoding section 53 is initialized by the clear signal, the load 49 etc.
Controlled to maintain the current state.

In this way, the receiving means 32 detects the reset command data and sends the reset) (,?, * to the load controller b 33
The existing load control means 3 can be
3 can be used to enable remote control by means of transmission 31.

FIG. 5 is a block diagram of the receiving means 60 of the embodiment. This embodiment is similar to the previous embodiment, and corresponding parts are designated by the same reference numeral (=1).It should be noted that in this example, the transmitting means 31 transmits the reset command data to the logic for a certain period of time. A transmission signal of "0" is transmitted.The falling edge and falling edge I of this transmission signal are detected by the pulse edge detection unit 61, and upon detecting the falling edge and rising edge, a detection signal is given to the timer 62, When falling, timer 62
is set, the timer 62 starts counting, and when the pulse edge detector 61 detects a rising edge, the timer 62 starts counting.
The timer 62 sends a clear signal to the load control means 33 when the reset signal reaches a certain period of time from the falling edge to the rising edge of the reset signal. Such a configuration also allows the load control means 33 to operate normally without checking for transmission errors.

! @6 Figure is a block diagram of the receiving means 70 of another embodiment. This embodiment is similar to the previous embodiment, and corresponding parts are provided with the same reference numerals. In this embodiment, the transmitting means 31 sends out the reset signal as a train of a fixed number of pulses. In the receiving means 70, the pulse detection section 71 detects the pulse and the incoming column, and uses the detection signal to increment the counter 72. When the count reaches the predetermined number of pulses of the reset signal or more, the counter 72 is activated. 72 sends a clear signal to the load control means 33.

In the above-described embodiment, the reset command data is added before and after the control command data, but it may be added to at least one of the front and rear of the control command data.

By using the conventional iQ prevention method in combination, the present invention can more efficiently and reliably send the transmission signal to the receiving means and control the control results normally.

Effects As described above, according to the present invention, the transmitting means transmits a transmitting signal with reset command data added to at least one of the front and rear sides of the control command data, and the receiving means receives this signal.
% data is detected, and when it is detected, a clear signal is sent to the load control means, so that after the clear signal 3 is received, incorrect control command data is given and input to the load control T first stage. However, the load control means can be maintained in a normal state by clear signals added before and after the control command data.

Furthermore, there is no need for the receiving means to check whether or not the command data has been correctly transmitted, and the process can be simplified by simply purchasing a reception control section that is controlled by the receiving means.

In addition, the load control means does not need to check many combinations of control command data as in the prior art, and the structure can be simplified.

Furthermore, the procedure for inputting control command data can be simplified.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a remote control device according to an embodiment of the present invention, FIG. 2 is a 70-chat showing the operation of the transmitting means, FIG. 3 is a diagram showing specific contents of the transmitted signal, and FIG. is a flowchart showing the operation of the receiving means 32, FIG. 5 is a block diagram of the receiving means 60 of Ike's embodiment, FIG. 6 is a block diagram of the receiving means 70 of Ike's embodiment, and FIG. 7 is a block diagram of the receiving means 70 of Ike's embodiment. A block diagram of the control device, FIG. 8 is a 70-chat showing the operation of the transmitting means in the conventional one-way transmission system, and FIG. 9 is a flowchart showing the operation of the transmitting means in the conventional two-way transmission system.
Figure 0 is a flowchart showing the operation of the conventional receiving means.
FIG. 1 is a flowchart showing the operation of a conventional load control means. 30... Remote control device, 31... Transmission means, 32°60.70... Receiving means, 33... Load control means,
34... Fabrication section, 35... Transmission data buffer, 3
6゜42.45...Data memory, 37...Transmitter, 38...Switcher, 3...Transmit ff1lJ g section, 40...Receiver, 41...Receive data back F, 43.46... Comparator, 42t... Reception control unit,
・17...Parameter data buffer, 43...Buffer counter, 49...Load, 50...Display device,
51... Surrounding S? c position, 52... control unit, 53...
・Instruction defood section, 61... Valsuetsuno detection section, 6
2...Timer, 71...Pulse detection section, 72...
Counter Agent Patent Attorney Saikyo Kei Section Figure 2 Figure 4 Figure 8 Figure 9 Figure 10 Figure 11 Procedure Amendment Ring (Method) % Formula % 1. Case Indication Patent Application 1984-264433 2. Invention Name transmission method 3, relationship with the case of the person making the amendment Applicant address name (583) Matsushita Electric Works Co., Ltd. Representative 1, j4. . International FAX GITI&GII (06)538-02
47 'February 25, 1986 (shipment date) 6. Description and drawings to be amended 7. Description of the contents of the amendment and engraving of the drawings (no change in content). Amendment of the above procedure November 22, 1986

Claims (1)

[Scope of Claims] A transmission method including a transmitting means, a receiving means, and a load control means, wherein a transmitting signal from the transmitting means is received by the receiving means and the load is controlled based on the transmitted signal, the transmitting means The device sequentially sends one signal unit as a transmission signal consisting of control data and reset command data added to at least one before or after the control data, and the receiving means detects the reset command data and outputs a clear signal. is transmitted to the load control means, the load control means clears the control data in response to this clear signal, and thereafter controls the load using the previous control data until the next control data is received. Transmission method.