JPS6269304A - Remote control equipment - Google Patents

Abstract

PURPOSE:To prevent the system breakdown with a remote control equipped by adding an equipment main body/remote operating part identification code to an address code in a signal packet and identifying the reception signal for the equipment main body from that for the remote operating part by said identification code via a transmitting microcomputer. CONSTITUTION:The transmission of a remote operating part 26 is delayed by some reason and other remote operating parts waits for the transmission carried out by an equipment main body 25. Under such conditions, the part 26 performs the transmission and each remote operating part receives the signal packet of the part 26 to decode an address code from the signal packet. Then the remote operating part reads the final bit '1' of the equipment main body/ remote operating part identification code '0101'. Thus the remote operating parts excepting the part 26 can judge that the received data is not sent from the main body 25 but from either one of those remote operating parts and therefore can wait immediately for the transmission of the main body 25 without carrying out any processing after reception.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a remote control device used in a water heater or the like to remotely control the main body of the device.

BACKGROUND OF THE INVENTION Conventionally, equipment such as water heaters are increasingly being installed outdoors in response to the diversification of household hot water supply systems. For this reason, remote control devices can be operated remotely from indoors, and in order to satisfy increasingly complex and diverse functions, remote control devices are increasingly required to have high functionality and high added value.

FIG. 5 is an overall configuration diagram of such a conventional remote control device, and FIG. 6 is a configuration of a transmission microcomputer.

In Fig. 1, 1 is a water heater, 2 is an input/output circuit that drives the water heater 1, 3 is an address setting section, 4 is a remote control section, and 5 is an input/output circuit that performs display and input for the remote control section 4. , 6 is an address setting section for setting the address of the remote control section 4, 7 is a remote control section, 8 is an input/output circuit for displaying and inputting information for the remote control section 7, and 9 is an address for setting the address of the remote control section 7. Setting section, 10 is remote control section 4 (hereinafter abbreviated as M control)
11 is a signal transmission microcomputer that inputs and transmits setting data, etc. of the remote control section 7 (hereinafter abbreviated as F controller); (hereinafter referred to as transmission microcomputer F), 12 sequentially transmits data from the transmission microcomputer MIO, and controls all input/output circuits 2 of the water heater 1 while exchanging data and performing bt with multiple remote control units 4.7. A main body transmission microcomputer (hereinafter abbreviated as main body transmission microcomputer) 13 is a signal transmission line for transmitting and receiving transmission signals such as data between the remote control section 4.7 and the main body transmission microcomputer 12.

The operation of the remote control device configured as described above will be explained below.

First, the main body transmission microcomputer 12 is
Select signal packets 14 to 17 h' as shown in FIG.
1 and sends it to the signal transmission line 13 (for example, FIG. 7).

The signal transmission microcomputer 10.11 of each remote control unit 4.7 decodes the address part from the signal packet shown in FIG. 7, and transmits it to the main unit in proportion to the address set by the address setting unit 6.9 It is determined whether or not it has been called from the microcomputer 12.

Any of the remote control units 4.7 that was not called moves on to other processing and waits to receive transmission from the next main body transmission microcomputer, but any of the remote control units 4.7 that were called
The transmission microcomputer 6.9 of 7 processes the sent data and outputs the result to an input/output circuit (for example, 5.8 of FIG. 5). The data input through the input/output circuit 5.8 and the address set by the address setting section 6.9 form 18 to 24 signal packets as shown in FIG. 7, and are sent to the signal transmission line 13. (for example, Figure 8). The main body transmission microcomputer 12 reads out the 71-response and data from the transmitted signal packets 18 to 24, performs processing based thereon, and outputs the processed data to the input/output circuit 2. Then, the transmission address is incremented and the above operation is repeated, and when the transmission address becomes an address corresponding to the remote control unit 7, the transmission address is initialized and transmission and reception are repeated.

Problems to be Solved by the Invention However, in the above method, during transmission and reception,
If some abnormality occurs inside the k-th remote control unit, as shown in 20 and 24 in FIG. Even though the main body transmission microcomputer 12 always received the transmission, the remote control units other than the k-th received the transmission to the main body transmission microcomputer of the second remote control unit, and as shown in FIG. Since there is no function to distinguish between the device main body 1 and the remote control section 4.7, the transmission from the next main body transmission microcomputer 12 cannot be received due to the amount of processing required by each remote control section. Not only that, but once the main body transmission microcontroller 12
If the transmission from the main body transmission microcomputer 12 is not received, there is a problem in that the fail-safe program is activated and the system goes down.

In view of the above-mentioned problems, the present invention provides that even if a remote control section cannot receive a transmission from the main body of the device for some reason and receives a reply from another remote control section to the main body of the device, the transmission from the other remote control section The purpose of the present invention is to provide a remote control device that recognizes that the device is in a state of failure and can reliably receive transmissions from the next device main body to prevent system failure.

Means for Solving the Problems The means of the present invention for solving the above problems is as follows: (1) The address code in the signal packet to be sent and received is changed to the address of the remote control unit and a code that distinguishes the main body of the device from the remote control unit. It consists of:

(2) Furthermore, in the present invention, each remote control section is configured so that when each remote control section receives a transmission from a source other than the main body of the device, it stops subsequent processing and immediately receives the transmission from the main body of the device. It is to be.

Effects According to the present invention, when the remote control section receives a transmission from a source other than the device main body with the above-described configuration, it recognizes that the transmission is not from the device main body using the device main body/remote control section identification code, and performs other normal processing. This will prevent incorrect reception from each remote control unit and the entire system from going down.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. Parts that are the same as those of the prior art are given the same reference numerals, detailed explanations will be omitted, and the explanation will focus on the different parts.

FIG. 1 is an overall configuration diagram of the remote control device of this embodiment. In this case, change the remote control unit to 7@(address 1
001" to '111'), and the address code is limited to 4 bits (remote control unit address a bit, device/remote control unit identification code 1 bit) as shown in Figure 2. In addition, Figure 3 shows the address code. One example of the code, FIG. 4, shows the configuration of the transmission microcomputer 28. In FIG.
Let's consider a case where the remote control unit 26 whose address is set to 12" transmits and receives the data. First, the device main body 25 constructs a signal packet by formatting the address code with '0100' as shown in A in FIG. 3, and transmits the signal. The signal is sent to line 27. Each remote control unit receives the signal packet sent from the device main body 25 to the signal transmission #I 27, reads the address from the signal packet, compares it with its own set address, and calls the device main body 25. Determine whether or not. The remote control section that was not called shifts to other processing and then waits again for transmission from the device main body 25, while the remote control section 26 that was called from the device main body returns to the device main body after processing after reception. Prepare the data to be sent to 25, and set the address code to 3rd.
As shown in B in the figure, a signal packet is formed together with the data as '0101' and sent to the signal transmission M27. At this time, each remote control section other than the remote control section 26 is internally provided with an appropriate delay so as not to receive the transmitted packet from the remote control section 26.

However, if the transmission from the remote control section 26 is delayed for some reason, and the remote control section 26 sends a message while the remote control sections other than the remote control section 26 are waiting for transmission from the device main body 25, each remote control section receiving the signal packet of section 26;
The address code is decoded from the signal packet, and the equipment/remote control unit identification code '0f' is found in the address code.
(Last beep of H') Read % 1 tr. Accordingly, the remote control units other than the remote control unit 26 can determine that the data just sent was not sent from the device body 25, but was sent by one of the remote control units.
Since the transmission microcomputer, which is a component of each remote control unit, is configured as shown in FIG. 4, it is possible to immediately wait for transmission from the device body 25 without performing post-reception processing.

As described above, according to the remote control device of this embodiment, the address code is provided with a code that identifies the main body of the device and other remote control sections, and the transmission microcomputer 27 of the remote control section is connected to the main body of the device and the remote control section. By configuring the device so that it can be identified, each remote control section can receive and receive signals sent from the main body of the device without fail, thereby preventing system failure due to erroneous reception.

Effects of the Invention As described above, according to the present invention, a device main body/remote control section identification code is provided in the address code of the signal packet,
By configuring the transmission microcontroller so that it can identify whether the received signal is the device itself or the remote control section using the device/remote control section identification code, each remote control section can receive the signal from the device main body without fail. This can prevent system failure.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of a remote control device showing an embodiment of the present invention, Fig. 2 is a configuration diagram of the same address code, Fig. 3 is a diagram showing an embodiment of the same address code, and Fig. 4 is a diagram showing the same address code. The configuration diagram of the transmission microcomputer, Figure 5 is the configuration diagram of the conventional remote control device, Figure 6 is the configuration diagram of the same transmission microcomputer, Figure 7 is the configuration diagram of the same signal packet, and Figure 8 is the same signal transmission line. FIG. 2...Input/output circuit, 3.6...Address setting section (address setting means), 12...Main transmission microcomputer (transmission control section), 25... ...Equipment body, 26...Remote control unit, 27...Signal transmission line, 28...Transmission microcomputer (transmission control unit). Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure Address Cor F Figure 3/A Figure 4 + 8 L----------J Ward Figure 6

Claims (4)

[Claims] (1) a remote control unit that remotely controls the device main body; a transmission control unit provided in the device main body and the remote control unit;
a signal transmission line connecting the device main body and the remote control unit;
The transmission control section includes an address setting means, and a remote control device having control functions for each of the device main body and the remote control section, and a control function for selecting a control function according to the address set by the address setting means. . (2) The remote control device according to claim 1, wherein a microcomputer is used as the control means, and a ROM of the microcomputer is provided with a control program for achieving the control function. (3) The remote control device according to claim 1, having a function of distinguishing between the device main body and the remote control section based on the address set by the address setting means. (4) The remote control device according to claim 3, which has a function of preventing erroneous reception by each remote control unit.