JPH03113996A - Remote controller for equipment and water flow display device - Google Patents

Abstract

PURPOSE:To easily recognize a fault mode caused in the past by providing an error code display device displaying the content of a fault of a device main body with a signal sent from an error detector of a main body device to a transmitter-receiver and an error display switch to cause display onto the error code display device. CONSTITUTION:A remote controller 1 is connected to a device main body 2 with a connection cable 3. The device main body 2 consists of a controller 4 and a transmitter-receiver 6 and the controller 4 is provided with a memory 4a storing the fault content caused in the device main body 2 in the past. On the other hand, the remote controller 1 is provided with a transmission reception circuit 6 and a controller 7 and the controller 7 controls an operation switch 8 turning on/off the power supply, an error display switch 10 displaying an error code onto an error display device 9 and the error display device 9. The remote controller 7 receiving the error code outputs the error code in 2-digit to a decoder 9a as a 4-bit binary data. Then the decoder 9a displays the error code onto a 7-segment LED 9b in hexadecimal 2-digit.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a remote controller and a water flow display device for a gas water heater or the like.

Conventional Technology Traditionally, when a failure occurs in a water heater, etc., in order to easily identify the cause of the failure, a method has been adopted in which the equipment itself memorizes the failure modes that have occurred in the past, and the memorized information is displayed using a switch. There is. A conventional example will be explained below with reference to FIG.

In Fig. 7, 1 is the main body of the device, and 2 is a remote controller (hereinafter referred to as remote control). It is equipped with a transmitting/receiving circuit 4 that receives the information, and an error switch 5 that is set when it is desired to display a failure that has occurred in the past. If you want to know about failures that have occurred in the past, turn on the error switch 5 to control the control circuit 3.
reads the error contents from the memory 3a and sends it to the transmitter/receiver circuit 4.
The error code is transmitted to the remote control transmitting/receiving circuit 6 using a predetermined communication protocol. The remote control transmitting/receiving circuit 6 that received the error code transfers the error code to the error display device 7, and displays the 7-segment LED 7a.
An error code is displayed.

Further, while the error switch 5 is ON, the contents of errors that have occurred in the past are successively transmitted as many as the number stored in the memory 3a, and are displayed on the 7-segment LED 7a.

Problems to be Solved by the Invention However, in this configuration, since the error switch 5 is located inside the device body 1, it is necessary to perform work on the device body whenever you want to know the cause of the failure, which is very troublesome when repairing. It had become a thing. Another drawback is that if different failure modes have occurred several times in the past, it is difficult to determine the order in which they occurred. Furthermore, in the unlikely event that the water flow detection device that detects whether water is flowing in the water supply channel of the main unit malfunctions, the hot water supply sequence will not proceed and water will be supplied from the faucet, but the control circuit 3 will recognize it as a malfunction. Since the error code cannot be displayed, the error code was not displayed and the error code was not displayed.

Therefore, a first object of the present invention is to provide a remote controller that can easily recognize failure modes that have occurred in the past during repair.

A second object of the present invention is to provide a remote controller that can easily recognize the order in which failure modes occurred in the past.

The third purpose is to facilitate the flow of water to the water supply channel of the equipment body.ii! The purpose of this invention is to provide a water flow display device that can be recognized.

Means for Solving the Problems Therefore, in order to achieve the first object, the present invention provides a remote control control device and a system that transmits operation contents to the device main body and other remote controllers, and that transmits operation contents from the device main body and other remote controllers. a transmitting/receiving device for receiving the status; an error code display device for displaying failure details of the device based on a signal sent to the transmitting/receiving device from an error detecting device of the main device; and lighting a display on the error code display device. It is equipped with an error display switch for

Further, in order to achieve the second object, the present invention includes an error code display device including an error occurrence order display device that indicates the order of failure occurrence in the main body of the device.

Furthermore, in order to achieve the third object, the present invention includes a water flow detection device that detects the flow of water in a water passage of a device main body, a transmitting and receiving device that exchanges signals with the device main body, and a transmitting and receiving device that transmits signals from the device main body. The system detects the flow of water in the water supply channel of the main body of the device based on the signal sent, and displays the water flow.

Function: By attaching an error display switch to the remote controller, the remote controller of the present invention allows not only repair personnel but also equipment users to easily recognize failure modes that have occurred in the past, allowing for efficient repair work.

In addition, a remote controller equipped with an error order display device that shows the order in which failures occurred in the main unit allows you to check the order in which errors have occurred at a glance, and if different types of errors are mixed, it is easier to find the cause of the failure based on the order in which they occurred. can be done.

Further, the water flow display device that displays the flow of water in the main body water supply channel allows easy recognition of whether the water flow detection device is normal when the faucet is opened, and is useful for troubleshooting.

Example Examples thereof will be described below with reference to the drawings.

FIG. 1 is a system diagram of the first embodiment.

The remote controller 1 is connected to the device main body 2 via a connection cable 3.The device main body 2 is composed of a control device 4 and a transmitting/receiving device 5. There is a memory 4a that stores data.

On the other hand, the remote control l has a transmitting/receiving circuit 6 and a control bag W7, an operation switch 8 that turns the power on and off by the control device 7, an error display switch 10 that displays an error code on the error display device 9, and an error display device 9. is controlled. The error display device 9 is composed of a decoder 9a and two 7-segment LEDs 9b.

FIG. 2 shows the packet structure of communication data. The communication data includes an address SA on the sending side, an address DA on the receiving side, a control word CW indicating the type of data,
DATA, which is the information string to be transmitted, and error detection code F
It is composed of CC. The protocol is such that the control word CW is set to 3 when transmitting an error code, and set to O when transmitting operation details.

FIG. 3 shows a schematic flowchart of the remote control control device 7 when displaying the contents of a past failure on the failure display device 9.

When the remote control control I device 7 detects that the error display switch 10 has been pressed (51), it checks whether the device body 2 is in operation, that is, whether the operation switch 8 is on (52), and then turns on the operation switch. If the switch 8 is on, the error display will not be displayed as it may be mistaken for an error currently in operation.If the operation switch 8 is off, the error bit in the DATA part of the packet configuration shown in Figure 2 will be set. control word CW to 0
Then, the packet is transmitted to the device main body 2 via the transmitting/receiving circuit 6 (S3).

The control device 4 of the device main body 2 that has received the data retrieves the most recent error among the errors that have occurred in the past from the memory 4a, and transmits the error code. In that case, set the control word CW of the packet configuration in Figure 2 to 3, DATA
The error code is transmitted to the remote controller l via the transmitter/receiver circuit 5 as a two-digit error code.

Upon receiving the error code, the remote control control device 7 outputs each two-digit error code as 4-bit binary data to the decoder 9a (S5).

The error code is displayed by the decoder 9a on the 7-segment LED 9b as a two-digit hexadecimal number.

If the error display switch IO is pressed continuously, the main body control device 4 reads out the second newest error data from the memory 48 and transmits it. Furthermore, if the error display switch 10 is pressed a number of times equal to or greater than the number of error data stored in the memory 43, the main body control device 5 transmits the newest error code again.

Further, when it is desired to end the error display, the operation switch 8 can be turned on to end the error display.

With the above-described configuration, it is possible to easily confirm the contents of past errors by pressing the error switch 10 without confusing them with currently occurring errors.

Next, the second embodiment will be explained with reference to FIGS. 4 and 5.

FIG. 4 is a system diagram of the remote control I of the second embodiment. The transmitting/receiving device 6 exchanges signals with the main body 2 of the device, and also includes an operation switch 8 that turns on and off the power using a remote controller 7, an error display switch 10 that displays an error code on an error display device 9, and an error display device. 9 is controlled. The error display device 9 is composed of two 7-segment LEDs 9b and their decoders 9a for displaying error codes, and one 7-segment LED 9d and its decoder 9C for indicating the order of error occurrence. In addition, the error occurrence order display device is one piece of 7.
These are the segment LED 9d and the decoder 9C.

FIG. 5 shows a schematic flowchart of the remote controller control unit 7 when displaying the details of failures that have occurred in the past on the failure display device 9 in the order of occurrence.

If the operation switch 8 is off when the error display switch 10 is turned on (312), data requesting an error code is transmitted to the device body 2 (s13).

When an error code is received from the device body 2 (314),
The error code is a two-digit hexadecimal number, and it is checked whether it is FF' (315). This data FF' is impossible as an error code, so it is 'FF'.
is sent only when all of the error data stored in the device main body memory 48 has been sent.

If the error code is not FF', the counter M in the memory 78 in the control device is incremented by one (516).

The value of the counter M is output to the decoder 9c and the 2-digit error code is output to the decoder 9a as 4-bit binary data (317), that is, the newest error code among the errors that have occurred in the past is sent. The number 1 is displayed in front of the hour.

If you continue to press the error display switch 10, the device body 2
sends the second newest error code and stores it in memory 4a.
The counter M becomes 2, and a number is added to the front of the error code in the order of occurrence. Moreover, when it is desired to end the error display, it can be ended by turning on the operation switch 8. Further, since the counter M is cleared when the error code FF is received and when the operation switch 8 is turned on (318), the number and error content will never fail.

With the above configuration, the contents of errors and the order in which they occur can be confirmed at a glance by pressing the error switch 10, thereby improving the efficiency of failure diagnosis.

Next, the third embodiment will be explained with reference to FIG.
The water passage 13 of the device body 2 is equipped with a water flow sensor 12 that detects whether water is flowing.

This water flow sensor 12 sends a signal to the control device 4 when water flows at approximately 2 f/min or more.

When water flows through the water passage 13 at a rate of 21/min or more, the control device 4
detects water flow from the signal from the water flow sensor 12, sets the water flow bit in the DATA portion of the packet structure shown in FIG. The remote controller 1 includes a 0 display control device 11c that receives data through a transmitting/receiving circuit 6, modulates the data, and transfers the data to the water flow display means 11.
Then, if the water pass bit of the received data is set, an output is made to turn on transistor llb. When the transistor 11b is turned on, the LEDlla lights up. Therefore, when water flows into the main body passageway 13, the LEDlla lights up.

With the above configuration, water flow to the main device can be easily detected.

Effects of the Invention As is clear from the above description, in the remote controller according to claim 1 of the present invention, by providing the remote controller with an error display switch, failure modes that have occurred in the past can be easily recognized, and repair work can be carried out efficiently. I can do it.

Further, in the remote controller of the second aspect, by providing the remote controller with an error occurrence order display device, if different types of failure modes have occurred mixedly in the past, the cause of the failure can be easily investigated based on the order of occurrence.

Further, in the water flow display device according to the third aspect, since it is possible to easily recognize whether the water flow detection device is normal by the action of opening the faucet, it is useful as a first step in troubleshooting.

It goes without saying that the water flow display means of claim 3 can be provided not only in the remote control but also in the main body of the device.

[Brief explanation of drawings]

FIG. 1 is a system diagram in the first embodiment of the present invention, FIG. 2 is a configuration diagram of communication packets in the first, second, and third embodiments of the present invention, and FIG. 3 is a system diagram in the first embodiment of the present invention. FIG. 4 is a schematic flowchart of the control device in the second embodiment of the present invention, FIG. 5 is a schematic flowchart of the control device in the second embodiment of the present invention, and FIG. A system diagram according to a third embodiment of the present invention, FIG. 7 is a system diagram of a conventional error display device. 4... Main body control device, 5.6... Transmission/reception circuit, 7... Remote control control device, 8...
...Operation switch, 9...Error display device, 1
0...Error display switch, 11...
Water flow display means, 12...Water flow sensor.

Claims (3)

[Claims] (1) A remote control device, a transmitting/receiving device for transmitting operation details to the device main unit and other remote controllers, and receiving the status sent from the device main unit and other remote controllers, and an error detection device of the main device to A remote controller for a device, comprising: an error code display device that displays failure details of a device main body based on a signal sent to a transmitting/receiving device; and an error display switch for causing the error code display device to display a message. (2) The remote controller for a device according to claim 1, wherein the error code display device includes an error occurrence order display device that indicates the order in which failures occur in the device body. (3) A water flow detection device that detects the flow of water in the water passage of the device body, and a transmitter/receiver device that exchanges signals with the device body;
A water flow display device comprising: means for displaying water flow in a water supply channel based on a signal sent from the device main body to the transmitting/receiving device.