JP3391992B2 - How to adjust the time of the remote control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device in which a clock is built in both a remote control unit and a device main body remotely controlled by the remote control unit. The present invention relates to a method for adjusting the time of a remote control device that matches the time of a clock of a remote control unit and a clock of the device main body. 2. Description of the Related Art In recent years, the number of devices that can be operated from a remote place using a remote control unit has been increasing. For example, in a car security device for preventing theft or mischief of an automobile, a security device main body is attached to a vehicle, and a user turns on or off a security function from outside the vehicle using a remote control unit. In car security devices,
It has been studied to display the details of the abnormality that has occurred in the vehicle and the time at which the abnormality has occurred on a liquid crystal display device connected to the security device main body or a liquid crystal display unit of a remote control unit. In this type of car security device, a clock is built in both the car security device body and the remote control unit. [0003] However, in a device such as the above-mentioned car security device in which a clock is provided in both the remote control unit and the device main body, both of them are used during a long period of use. There is a problem that the time of the clock is shifted. SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for adjusting the time of a remote control device that automatically corrects a time lag of a clock incorporated in each of a remote control unit and a device body. [0004] The above-mentioned problem is solved by a remote control unit incorporating a first timepiece and a second timepiece.
A time setting method of a remote control device which incorporates a clock of the device and adjusts the time of each clock with a device main body which can be remotely controlled by the remote control unit, wherein the remote control unit operates the device main body. And transmitting the time information indicated by the first clock to the signal of the second clock, and the device body corrects the time of the second clock to the time indicated by the information added to the signal. The problem is solved by the time setting method of the remote control device. [0005] Further, the above-mentioned problem is caused by a remote control unit having a first clock built therein and a device body having a second clock built therein and capable of bidirectional communication with the remote control unit. A time adjustment method for a remote control device for adjusting a clock, wherein the device body includes:
When transmitting a signal to the remote control unit, the remote control unit transmits the signal with time information indicated by the second clock added thereto, and the remote control unit transmits the time of the first clock to the information added to the signal. The time can be corrected to the time indicated by the following equation. The operation of the present invention will be described below. In the present invention, when a signal is output from the remote control unit, information indicating the time of a first clock built in the remote control unit is output together with the signal. The device body corrects the time of the built-in second clock to the time indicated by the information received together with the signal. Thus, the times of the first clock and the second clock match. When bidirectional communication is possible between the remote control unit and the main body of the device, when a signal is output from the main body of the device to the remote control unit, a second clock built in the main body of the main body of the device is output. The information indicating the time may be output together with the signal, and the remote control unit may correct the time of the first built-in clock to the time indicated by the information. Thus, the times of the first clock and the second clock match. An embodiment of the present invention will be described below with reference to the accompanying drawings. (First Embodiment) FIG. 1 is a diagram showing an example in which a time setting method of a remote control device according to an embodiment of the present invention is applied to a car security device. The car security device includes a security device body 10 mounted on a vehicle, and a remote control unit 11 for performing bidirectional communication with the security device body 10 by radio waves, light, or sound waves. The remote control unit 11 includes a security function on button, a security function off button, and buttons (not shown) for locking (locking) and unlocking (unlocking) a vehicle door.
Further, the remote control unit 11 includes a clock 11
b, and a counter 11c for counting the number of times the security function on or off button is pressed. Further, the remote control unit 11
As shown in FIG. 7, a display unit 11a capable of displaying eight alphanumeric characters and time is provided. On the other hand, the security device main body 10 includes a control unit 17 constituted by a microcomputer, and a transmission / reception unit 12, an operation unit 13, a memory unit 14, a clock unit 15, and a bus input / output unit connected to the control unit 17. 16. The transmission / reception unit 12 transmits and receives signals to and from the remote control unit 11. The operation unit 13 is provided with various operation switches for operating the car security device. The memory unit 14 includes a ROM in which a program for implementing a function required as a car security device is stored, a RAM in which various data are stored, and an ID of a remote control unit.
EEPROM (Electr) in which the (Identity) code is registered
erasable programmable ROM). The clock unit 15 is a clock built in the security device main body 10. The bus input / output unit 16 is connected to the bus line 6a and outputs data to the bus line 6a, or inputs data from the bus line 6a. The bus line 6a is connected to, for example, an in-vehicle audio device or an audiovisual device having a liquid crystal display device. The control unit 17 monitors the state of various sensors, which will be described later, and when the sensor detects an abnormality, writes the sensor and time when the abnormality is detected in the memory unit 14 and generates a signal for generating an alarm. Or The security device main body 10 is connected to a vehicle-mounted power supply 31, an ignition switch 32, a valley switch 33, and a door lock unit 34. Then, the security device body 10
Is the ignition switch 32 and Valet
The state of the switch 33 can be detected. The valley switch 33 is installed in an inconspicuous place such as under a dashboard, and is used when the security function is released without the remote control unit 11. The door lock unit 34 is a device for locking (locking) and unlocking (unlocking) the door based on a signal from the remote control unit 11. Hereinafter, an alarm device and a sensor connected to the security device main body 10 will be described. The starter cut relay 21 is for preventing the engine starter from rotating when the security device body 10 detects an abnormality. The siren drive unit 22 sounds a siren when the control unit 17 detects an abnormality, and notifies the surroundings of the occurrence of the abnormality. The headlight drive unit 23 blinks the headlight when the control unit 17 detects an abnormality, and notifies the surroundings of the occurrence of the abnormality. The door sensor 24 is a sensor for detecting opening and closing of the door, and the hood sensor 25 is a sensor for detecting opening and closing of the hood. These sensors 24 and 25 are constituted by on-off switches, and detect opening and closing of a door or a bonnet by turning on or off a switch. The radar sensor 26 is a sensor that detects the movement of the vehicle or an object (such as a human) approaching the vehicle by radar waves.
The impact sensor 27 is a sensor that detects an impact applied to the vehicle, and the glass break sensor 28 is a sensor that detects the impact applied to the glass by sound. These sensors 26, 27, and 28 are sensors that require sensitivity adjustment, and are connected to the control unit 17 via sensitivity adjustment units 26a, 27a, and 28a. In this car security device, after the user removes the ignition key and gets off the vehicle,
When the security function on button of the remote control unit 11 is pressed, the security device main body 10 starts monitoring the state of each sensor, and when detecting an abnormality, drives the siren drive unit 22 or the headlight drive unit 23 to detect the abnormality. The occurrence is notified to the surroundings, and the sensor that detected the abnormality and the time when the abnormality was detected are stored in the memory unit 14 as security information. At this time, the control unit 17 acquires the time when the abnormality is detected from the clock unit 15. Thereafter, by a predetermined operation of the user, the security device main body 10 transmits the security information stored in the memory unit 14 to another device including a liquid crystal display device or the like via the bus input / output unit 16, or The security information is transmitted to the remote control unit 11 via the remote control unit 12 and displayed on a liquid crystal display device of another device or the display unit 11a of the remote control unit 11. FIG. 3 is a flowchart showing a time adjusting method according to the embodiment of the present invention. First, in step S1, when the user presses the security function on or off button of the remote control unit 11,
Move to step S2. If the value n of the counter 11c of the remote control unit 11 is less than 100, the process proceeds to step S3, and if it is 100 or more, the process proceeds to step S5. In step S3, a signal having a frame configuration shown in FIG. 4 is generated and transmitted to the security device main body 10. This signal is composed of a header portion composed of an 8-bit data sequence, a frame sync data portion composed of a 16-bit data sequence, an ID code portion composed of a 20-bit data sequence, and a 16-bit data sequence. And a rolling code section composed of a 16-bit data string. The header part is a data string of a fixed value added at the beginning of the transmission data, and the frame sync data part is a data string of a fixed value determined for each model, for example. Here, it is assumed that the value of the frame sync data portion is AAAAAh (h indicates a hexadecimal number; the same applies hereinafter). The ID code portion is a data string set for each remote control unit, and the ID code of the corresponding remote control unit 11 is registered in the security device body 10 in advance. Then, when the ID code added to the received signal does not match the registered ID code, the security device body 10 ignores the received signal. The function command section is a data string of values set according to operations such as turning on / off the security function or locking / unlocking the door. The rolling code section is a data string added to prevent a signal from being copied and security being broken. When receiving the signal having the frame configuration shown in FIG. 4, the security device main body 10 analyzes the data string of the function command part, recognizes a command to be executed such as turning on or off the security function, and follows the command. Perform the action. After outputting the signal in step S3, the remote control unit 11 proceeds to step S4 and increments the value of the counter 11c. Then, the process returns to step S1. On the other hand, in step S2, the counter 1
When the value n of 1c is 100, that is, when the number of times the security function ON or OFF button is pressed becomes 100, the process proceeds from step S2 to step S5, and the remote control unit 11 outputs a signal shown in FIG. Generate and output. That is, in the signal shown in FIG. 5, the value of the frame sync data portion is BBBBh,
The difference from the signal of FIG. 4 is that 20-bit time information is added after the rolling code part. When the value of the frame sync data portion is BBBBh, it indicates that time information is added. The time information is data obtained by converting the time of the internal clock 11b when the security function on or off button is pressed into binary. When the value of the frame sync data is BBBBh among the signals received by the transmission / reception unit 12, the security device main body 10 determines that the signal is a signal to which time information is added, and Change the data length. Thus, the signal to which the time information is added can be received without error. Then, it recognizes that the security function is ON or OFF based on the value of the data string of the function command part, starts or ends monitoring of the state of each sensor, extracts time information added to the signal, and extracts the clock information. The time of 15 is corrected to the time indicated by the time information. On the other hand, the remote control unit 11
Then, after transmitting the signal in step S5, step S6
To set the value n of the counter 11c to 0. Then, the process returns to step S1. In the present embodiment, as described above, a signal to which time information is added is transmitted every time the security control on / off signal is transmitted 100 times from the remote control unit 11, and the security device main body 10 calculates the time information from the received signal. Is extracted to correct the time of the clock unit 15, so that the remote control unit 1
The time of the clock 11b and the time of the clock unit 15 of the security device body 10 automatically match. In the above-described embodiment, the case where the time information is transmitted once every 100 times the security function on / off signal is transmitted from the remote control unit 11 has been described. However, the security function on / off signal is transmitted. At this time, the time information may be transmitted every time. However,
In this case, since one transmission time becomes longer, there is a possibility that power consumption of the remote control unit 11 increases, battery life is shortened, and a reception error is likely to occur. (Other Embodiments) In the first embodiment, the security function on / off button is set to one.
Although the case where the signal shown in FIG. 5 is output from the remote control unit 11 every time the button is pressed for 00 times has been described, the security function ON or OFF signal is transmitted instead of the signal shown in FIG. 5 or before transmission. Then, the signal shown in FIG. 6 or FIG. 7 may be transmitted. In the signal shown in FIG. 6, the value of the frame sync data portion is BBBBh, which indicates that the signal is a time information signal. After the ID code, time information of 16 bits (or 20 bits) is added instead of the function command. The signal shown in FIG.
When the first four bits of the function command portion are all “1”, it indicates that the remaining 12-bit data is time information. When the first four bits of the function command part are all “1”, the security device body 10 extracts the subsequent 12-bit data as time information and corrects the time of the clock part 15. In these embodiments, similarly to the first embodiment, the time lag between the clock of the remote control unit 11 and the clock section 15 of the security device body 10 can be automatically corrected. In each of the above-described embodiments, the case where the time of the clock unit of the security device main body 10 is adjusted to the time of the clock 11b of the remote control unit 11, but the time of the clock 11b of the remote control unit 11 is adjusted to the time of the security device main body. The time of the clock unit 15 may be adjusted to the time. For example, upon receiving the signal from the remote control unit 11 normally, the security device body 10 outputs a normal reception completion signal to the remote control unit 11 indicating that the signal has been received normally. Sound the buzzer short. The security device body 10 outputs the normal reception completion signal with information indicating the time of the clock unit 15 added thereto every time the normal reception signal is output 100 times.
Receives the signal and corrects the time of the built-in clock 11b to the time indicated by the information. Also in this case, the same effect as in the first embodiment can be obtained. In each of the embodiments described above, the case where the time lag between the remote control unit and the main body of the car security device is corrected has been described. However, the present invention is limited to the car security device. Of course, the present invention can be applied to a device such as an audio device or an audiovisual device that can be remotely controlled by a remote control unit. As described above, according to the present invention,
When outputting a signal from the remote control unit, information indicating the time of a first clock built in the remote control unit is output together with the signal, and the device main body outputs the time of the second clock built in to the remote control unit. Since the time is corrected to the time indicated in the information received together with the signal, the time of the first clock and the time of the second clock automatically match. When bidirectional communication is possible between the remote control unit and the device main body, when outputting a signal from the device main body, the time of the second clock incorporated in the device main body together with the signal is output. Is output, and the remote control unit corrects the time of the built-in first clock to the time indicated in the information, so that the time of the first clock and the time of the second clock are Automatically matches.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing an example in which a time setting method of a remote control device according to an embodiment of the present invention is applied to a car security device. FIG. 2 is a plan view showing a display unit of the remote control unit. FIG. 3 is a flowchart illustrating a time adjustment method according to the embodiment of the present invention. FIG. 4 is a diagram illustrating a frame configuration of a signal normally output from a remote control unit when a security function on or off button is pressed. FIG. 5 is a diagram illustrating a frame configuration of a signal to which time information output from a remote control unit is added. FIG. 6 is a diagram illustrating an example of a frame configuration of a signal to which time information output from a remote control unit is added according to another embodiment of the present invention. FIG. 7 is a diagram showing another example of a frame configuration of a signal to which time information output from a remote control unit is added in another embodiment of the present invention. [Description of Signs] 10 Security device main body 11 Remote control unit 12 Transmission / reception unit 13 Operation unit 14 Memory unit 15 Clock unit 16 Bus input / output unit 17 Control unit 21 Starter cut relay 22 Siren drive unit 23 Headlight drive unit 24 Door sensor 25 Bonnet Sensor 26 Radar sensor 27 Impact sensor 28 Glass break sensor 31 In-vehicle power supply 32 Ignition switch 33 Valley switch 34 Door lock

──────────────────────────────────────────────────続 き Continuation of front page (51) Int.Cl. ⁷ Identification code FI G08B 13/00 G08B 13/00 B

Claims (1)

(57) [Claims 1] Each clock of a remote control unit having a first clock built therein and a device main body having a second clock built therein and capable of being remotely operated by the remote control unit. A method for adjusting the time of a remote control device for adjusting the time of the remote control device, wherein the remote control unit controls the device main body.
Each time a specific signal for operation is transmitted a certain number of times,
The information of the time indicated by the first clock is added to the specific signal.
Signal transmitted to the apparatus main body, the method combined time of the remote control device, characterized in that to correct the time of the second clock to the time indicated by the information added to the signal.