JP2949901B2 - Remote control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device for remotely controlling various electronic devices.

[0002]

2. Description of the Related Art In recent years, a remote control device has been equipped with a microcomputer in a remote control unit in order to perform complicated display using a liquid crystal display or the like with the sophistication of a device body.
The number of devices that communicate with the main body control unit by wire, wireless, or the like to transmit display and operation information is increasing.

Heretofore, this type of remote control device has generally been configured as shown in FIG. Hereinafter, the configuration will be described. As shown in FIG.
The main body controller 2 is remotely controlled by a remote controller 3. The main body control unit 2 includes a device control unit 4 that controls the device main body 1, a first reception unit 5 that receives data from the remote control unit 3 and transmits the data to the device control unit 4,
The remote control unit 3 includes a first transmission unit 6 for transmitting data from the device control unit 4 to the remote control unit 3 and a backup power supply 7 for supplying power to the device control unit 14 when a power failure occurs. Operating means 8, second transmitting means 9 for transmitting operation data to the main body control section 2, second receiving means 10 for receiving display data from the main body control section 2,
The display unit 11 is configured to display on a liquid crystal display or the like based on the received display data.

The operation of the above configuration will be described. When power is supplied to the apparatus from a commercial power supply or the like, operation data from the operation means 8 is transmitted by the second transmission means 9. In the main body control section 2, the equipment control means 4 inputs operation data through the first receiving means 5, and controls the equipment main body 1 according to the operation data . On the other hand, the device control means 4
First transmission means 6 using the state of device body 1 as display data
Through the remote control unit 3 and the display unit 11
The display data is received through the receiving means 10 for display. The state of data transmission at this time is shown in FIG.

Next, at the time of a power failure, the equipment control means 4 is supplied with power from the backup power supply 7 to continue operation and hold control data necessary for control. The situation at this time is shown in FIG. When power is supplied again, FIG.
To return to the state before the power failure, and the operation of the device main body 1 can be continued.

[0006]

However, in such a conventional remote control device, since a backup at the time of a power failure is performed by the main body control unit 12, the device control means 4 usually includes sensors for temperature, humidity, and the like. Since a driving circuit such as an actuator such as a motor or a heater is operated, the current load is large. This becomes a problem when a power outage occurs. In the event of a power failure, the backup power supply 7 supplies power to the device control means 4. However, since the device control means 4 has a large current load, a large capacitor, a storage battery, a dry battery, or the like is used as the backup power supply 7 capable of supplying this power. This has not only increased the size of the equipment but also increased the cost. It is also conceivable to detect the power failure and stop the power supply to the load driving circuit, supply power only to the means for storing control data, and provide a function to reduce the current load. This requires not only a complicated configuration but also high costs.

An object of the present invention is to solve such a problem, and an object of the present invention is to provide an inexpensive and small-sized remote control device for backup during a power failure.

[0008]

In order to achieve the above object, the present invention comprises a main body control section installed near an apparatus main body and a remote control section for remotely controlling the main body control section. A device control unit for controlling the device main body, a first receiving unit for receiving data from a remote control unit and outputting the data to the device control unit, and a power failure recovery determination unit for determining recovery from a power failure. A backup data request signal is transmitted when the power failure recovery judging means judges the power failure recovery, and the control data held by the device control means is sequentially transmitted when it is judged that the power failure recovery is not performed. Transmitting means, wherein the remote control unit receives the backup data request signal while the second receiving means receives data from the main body control unit, and the second receiving means does not receive the backup data request signal. And volatile memory means for storing data to which the second reception unit receives, and a backup power source for supplying power to the front term memory means in the event of a power failure, or the remote control unit
And a second transmission unit for transmitting data to the main body control unit , wherein the second transmission unit transmits the backup data request.
When a signal is received, the data stored in the storage means is stored.
Data, and receives the backup data request signal.
When the backup data request signal is not
Change the transmission data to the main unit control according to
At the time of power recovery from the power failure, the device control means
The operation is started on the basis of the data from the above.

[0009]

According to the present invention, the apparatus is controlled by the first transmitting means in the main body control unit at times other than a power failure by the above means for solving the problems.
The control data necessary for means sequentially sends the remote control unit, and held in storage means of the volatile while powered by backup power source in the remote control unit at the time of power failure, this is the time of power recovery
Backup data by the first transmission means in the body control unit
By transmitting the request signal, the held control data is transmitted to the second
The control data returned by the device control means through the first receiving means, and controls the device body to back up the control data at the time of the power failure with a light load. This can be performed by the remote control unit, and a small and inexpensive backup power supply can be used , and the power failure can be reliably restored.
It is possible to restart the operation of the device after
it can.

[0010]

An embodiment of the present invention will be described below with reference to FIG. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted. As shown in FIG.
Is an electric water heater, for example, and a main body control unit 12 is installed near the main body 1 to control the main body 1. The remote control unit 13 communicates with the main body control unit 12 to perform display and operation. The main body control section 12 uses a microcomputer to accumulate the time during which power is supplied to the main body 1, and when the accumulated time exceeds a predetermined time, stops the armature control, and data from the remote control section 13. , A power failure recovery judging means 16 for turning on a power failure recovery signal when a power failure is detected, and determining a recovery from the power failure, and a control data in the device control means 14 when the power failure recovery signal is OFF. And a first transmission means 17 for transmitting a backup data request signal to the remote operation unit 13 when the power failure recovery signal is ON. The remote control unit 13 uses a microcomputer. The remote control unit 13 receives the data from the main body control unit 12. The remote control unit 13 controls the main body control unit while the second reception unit 18 does not receive the backup data request signal. Storage means 19 for storing current-period integration data as control data transmitted from
A second transmitting means 20 for transmitting the energized cumulative time data stored in the storage means 19 to the main body control unit 12 when the backup data request signal is received;
, Display means 11 and an electric double layer capacitor as a backup power supply 21 for supplying power to the storage means 19 even during a power failure.

The operation of the above configuration will be described. When the power is supplied, the main unit 1 is operated by the operation means 8 and the display means 11 in the remote operation unit 13 as in the conventional example.
Can be remotely controlled. FIG. 2 is different from the conventional example.
As shown in (1), while power is being supplied, the first transmission means 17 transmits energization time integrated data as control data in the equipment control means 14. At this time, the remote operation unit 13 stores the current
Received by the receiving means 18 and stored in the storage means 19.

When the supply of power is stopped, the main controller 12
Since the operation is stopped when the power supply runs out, the power-on time accumulated time data of the device control means 14 is lost. On the other hand, the remote operation unit 13 is supplied with power from the backup power supply 21 to the storage unit 19 and holds the energization time integrated data received before the power failure as shown in FIG.

When returning from a power failure, the main controller 12
Within, the power failure recovery determination means 16 turns on the power failure recovery signal. At this time, the first transmission unit 17 receives the power failure recovery signal and sends a backup data request signal to the remote control unit 13. In the remote control unit 13, when the second reception unit 18 receives the backup data request signal, the second transmission unit 20 transmits the energization time accumulated data stored in the storage unit 19 to the main body control unit 12. Main unit control unit 1
The first receiving means 15 in 2 receives the power-on time integrated data and outputs the data to the device control means 14. The situation at this time is shown in FIG. In the case of this embodiment, since the control data to be backed up is only the energization time integrated data,
The device control means 14 returns to the normal control and operates in the state shown in FIG.

As described above, the power-on time integrated data is held in the remote control unit 13 at the time of power failure, and the held power-on time integrated data is returned to the main body control unit 12 at the time of power failure recovery. The power supply time can be integrated with the integration time before the power failure, and the device main body 1 can be controlled. In the case of this embodiment, the device control means 14 includes a relay circuit for driving the heater of the electric water heater used for the device body 1, a temperature control circuit for controlling the heating temperature, and the like, and has a large current load. Remote control unit 1
3 has a liquid crystal display as the display means 11 to some extent, and the load is much smaller than that of the main body control unit 12. In the case where the same time is to be maintained in the event of a power failure, the remote control unit 13 has the backup power supply 21 as in the present embodiment, as compared with the conventional configuration in which the main body control unit 12 has the backup power supply. A smaller and cheaper backup power supply 21 can be used.

As described above, according to the present embodiment, the control data of the device control means 14 transmitted from the first transmission means 17 is stored in the storage means 19 in the remote control unit 13, and the remote control means is provided in the event of a power failure. The storage means 19 in the unit 13 is held by the backup power supply 21, and the power failure recovery determination means 16
, A first transmitting unit 17, a first receiving unit 15, and a second transmitting unit 20 in the remote control unit 13.
9 to return the control data stored in
Since the operation is continued based on the control data, the remote controller 13 having a lighter load than the main body controller 12 can hold the control data in the event of a power failure. Therefore, it is possible to use a backup power supply 13 which is smaller and cheaper than the conventional backup power supply which is backed up by the main body control unit 12.

Although the present embodiment has been described with reference to an example in which the present invention is applied to an electric water heater, the present invention can be applied to any remote control device regardless of the type of device to be controlled and the communication method such as wired or wireless. Needless to say.

[0017]

As is apparent from the above embodiment, according to the present invention, the remote control unit stores the data received by the second receiving unit while the backup data request signal is not received. And a backup power supply for supplying power to the storage means even during a power failure, and a second transmission means for transmitting data stored in the storage means when a backup data request signal is received. Device control means with remote control unit with less load than control unit
Backup of control data necessary for
Ensure that the operation of the equipment after power recovery is restored under the conditions before the power failure.
In addition to being able to be opened, a smaller and less expensive backup power supply can be used as compared with the case where a backup power supply is provided in the main body control unit. Further, when the same type of backup power supply is used, a long-time backup can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of a remote control device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of the normal operation of the remote control device.

FIG. 3 is an explanatory diagram of an operation of the remote control device at the time of a power failure.

FIG. 4 is an explanatory diagram of an operation of the remote control device at the time of recovery from a power failure.

FIG. 5 is a block diagram of a conventional remote control device.

FIG. 6 is an explanatory diagram of normal operation of the remote control device.

FIG. 7 is an explanatory diagram of an operation of the remote control device at the time of a power failure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 12 Main body control part 13 Remote control part 14 Device control means 15 First reception means 16 Power failure recovery determination means 17 First transmission means 18 Second reception means 19 Storage means 20 Second transmission means 21 Backup power supply

Continuing from the front page (72) Inventor: Naoho Katayama 1006, Kazuma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-59-225222 (JP, A) JP-A 1-256749 (Japanese) JP, A) JP-A-59-110277 (JP, A) JP-A-2-81202 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04Q 9/00

Claims (1)

(57) [Claims] And 1. A main body control unit installed in the vicinity of the device body, the main body control unit consists of a remote control unit for remotely operating the main control unit, a device control means for controlling said apparatus main body, a remote A first receiving unit that receives data from a control unit and outputs the data to the device control unit, a power failure recovery determining unit that determines recovery from a power failure, and a case where the power failure recovery is determined by the power failure recovery determining unit. A first transmission means for transmitting a backup data request signal, and sequentially transmitting control data held by the device control means when it is determined that the power recovery has not been performed, and wherein the remote control unit comprises: volatile second receiving means for receiving data from the control unit, while the second receiving means has not received the backup data request signal for storing data received by said second receiving means Storage means, and a backup power source for supplying power to the front term memory means in the event of a power failure, or the remote control unit
And a second transmission unit for transmitting data to the main body control unit , wherein the second transmission unit transmits the backup data request.
When a signal is received, the data stored in the storage means is stored.
Data, and receives the backup data request signal.
When the backup data request signal is not
Change the transmission data to the main unit control according to
At the time of power recovery from the power failure, the device control means
Remote control device that starts driving based on data from