CN201522777U - Automobile wireless remote-control emitter - Google Patents
Automobile wireless remote-control emitter Download PDFInfo
- Publication number
- CN201522777U CN201522777U CN2010201126235U CN201020112623U CN201522777U CN 201522777 U CN201522777 U CN 201522777U CN 2010201126235 U CN2010201126235 U CN 2010201126235U CN 201020112623 U CN201020112623 U CN 201020112623U CN 201522777 U CN201522777 U CN 201522777U
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Abstract
The utility model provides an automobile wireless remote-control emitter which comprises a singlechip, a first radio-frequency emitting chip and a second radio-frequency emitting chip. The singlechip is designed as follows: if the time for a user to press any key is shorter than a threshold value, a digital signal is transmitted to activate the first radio-frequency emitting chip; after the first radio-frequency emitting chip is activated, the singlechip transmits the digital signal immediately to prohibit the first radio-frequency emitting chip and transmits the digital signal to activate the second radio-frequency emitting chip; and if the time for the user to press any key is longer than the threshold value, only the digital signal is transmitted to activate the first radio-frequency emitting chip or the second radio-frequency emitting chip. In the automobile wireless remote-control emitter, by using two high-frequency emitting chips alternatively, a transmitted radio-frequency signal is ensured to contain two high-frequency signals. Therefore, when a person presses a key viciously for a long time, the signal of the wireless radio-frequency remote-control emitter can not be interfered.
Description
Technical field
The utility model relates to a kind of automobile wireless remote control transmitter, relates in particular to a kind of double frequency automobile wireless remote control transmitter.
Background technology
At automotive field, how to realize safety, quick, comfortable be the problem that the automotive field slip-stick artist makes great efforts to solve by automobile key opening and closing car door lock always.
First generation product is pure mechanical key.In use need the user near car door, then mechanical key be inserted into the key lockhole the inside on the car door, by machinery left and turn right and realize opening the purpose of car door lock and closed door lock respectively.
Second generation product is the mechanical key with wireless radio frequency remote control transmitter.In use, the user can be under the prerequisite away from vehicle, presses the respective keys of key with hand, and Remote Control Vehicle is carried out and unblanked and action such as locking, realized active, function at a distance.It is the main product in market at present.
At present the RF remote-controlled transmitter of automobile wireless be automobile remote-control key in automobile, particularly use very extensive in the passenger car.As an equipment that greatly strengthens user's convenience and comfortableness, use the RF remote-controlled transmitter of automobile wireless, the user can be by pressing the different key of wireless radio frequency remote control transmitter under away from the situation of vehicle, carry out and unblank at a distance, functions such as locking and boot unlatching, higher transmitter also have the remote activation engine and seek the car function.And the realization of these functions be by the RF remote-controlled transmitter of automobile wireless after corresponding panel feature button is pressed, initiatively send wireless radiofrequency electric wave with certain frequency and amplitude, and after these wireless radiofrequency electric waves are received by the receiver in the vehicle, handle accordingly and drive door-lock motor again and carry out and to unblank actions such as locking.
According to China " " (in April, 2007 version), the RF remote-controlled transmitter of automobile wireless allows the frequency of emission can only take the frequency of 315MHz or 433MHz to micropower (short distance) wireless device management temporary provisions.
But in daily use, because general car load manufacturer only requires with the RF remote-controlled transmitter of the automobile wireless of a car and only supports a frequency, 315MHz or 433MHz had both been used, in some cases, when the car of two or many same models is parked in a time-out, if the user of two cars presses the button of wireless radio frequency remote control transmitter simultaneously, want vehicle is carried out locking, unblank to wait action, but because the interference of same frequency band radiowave, cause two cars all can't accept the signal of its corresponding wireless radio frequency remote control transmitter, locking and actuating signal such as unblank can't correctly be discerned by vehicle, cause action to carry out failure.Even following extreme case arranged, someone malice is passed through long by wireless radio frequency remote control transmitter button, make the continual radiowave frequently that outwards sends together of wireless radio frequency remote control transmitter, disturb other users normally to use, locking car door signal can't correctly be discerned by the radio frequency receiver of vehicle, causes car door not to be closed, like this after user's carelessness is left, stayed potential safety hazard, the property that causes being placed in the car is lost.
The utility model content
The purpose of automobile wireless remote control transmitter of the present utility model is effectively to solve by other by long problem by key button malicious interference radio communication, a kind of double frequency automobile wireless remote control transmitter is provided, comprise: substrate, single-chip microcomputer, the first radio-frequency transmissions chip, the second radio-frequency transmissions chip, light emitting diode and radio-frequency antenna, wherein, described single-chip microcomputer, the described first radio-frequency transmissions chip, the described second radio-frequency transmissions chip, described light emitting diode and described radio-frequency antenna are welded on the described substrate by surface mount process (SMT).
Two utmost point luminotrons are set to, if the user was lighted when pressing any button;
Described single-chip microcomputer is set to, if the user presses the time of any button less than a threshold value, then send digital signal and activate the first radio-frequency transmissions chip, after finishing the activation first radio-frequency transmissions chip, single-chip microcomputer sends digital signal immediately and forbids the described first radio-frequency transmissions chip, and the transmission digital signal activates the second radio-frequency transmissions chip; If the time that the user presses any button greater than described threshold value, then only sends digital signal and activates the first radio-frequency transmissions chip or only send digital signal and activate the second radio-frequency transmissions chip.
Described first radio-frequency transmissions chip and the described second radio-frequency transmissions chip are set to, and will pass through its inner high-frequency oscillating circuits from the digital signal that single-chip microcomputer sends, and are modulated into the radiofrequency signal with certain frequency.
Described radio-frequency antenna is set to, and described radiofrequency signal is radiated the external world.
Preferably, the digital signal that the described first radio-frequency transmissions chip is set to send from single-chip microcomputer is modulated into the radiofrequency signal that frequency is 315MHz by its inner high-frequency oscillating circuits; The digital signal that the described second radio-frequency transmissions chip is set to send from single-chip microcomputer is modulated into the radiofrequency signal that frequency is 433MHz by its inner high-frequency oscillating circuits
Preferably, described wireless remote control emitter also comprises a button cell, and it provides the power supply of DC 3V for described single-chip microcomputer and described radio-frequency transmissions chip.
By technique scheme, the advantage of automobile wireless remote control transmitter of the present utility model and have a mind to effect and be:
By being used alternatingly two high-frequency emission chips, both included 315MHz in the radiofrequency signal that guarantees to send, also comprise 433MHz.Prevented that the people from adopting the long button of malice to disturb the wireless radio frequency remote control launcher signal.And wireless remote control emitter of the present utility model is not supported two-frequency operation long on time, so the anti-interference of wireless radio frequency remote control transmitter has obtained very big enhancing.
Description of drawings
Accompanying drawing shows embodiment of the present utility model, and with instructions, is used for explaining principle of the present utility model.By the detailed description of doing below in conjunction with accompanying drawing, can more be expressly understood the purpose of this utility model, advantage and feature, wherein, identical feature is used identical label.
Fig. 1 is the connection diagram of automobile wireless remote control transmitter of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
The main parts size that the utility model adopts comprises manufacturer and specifically model is as follows:
1. single-chip microcomputer: Philip NXP PCF7921
2. the radio-frequency transmissions chip 1: like special Mel ATMEL T5753 (315MHz);
3. the radio-frequency transmissions chip 2: like special Mel ATMEL T5754 (433MHz)
4. button cell: the Panasonic CR2032 of Panasonic battery
As shown in Figure 1, automobile wireless remote control transmitter of the present utility model comprises: the substrate (not shown), single-chip microcomputer, radio-frequency transmissions chip 1, radio-frequency transmissions chip 2, light emitting diode, a radio-frequency antenna and a button cell, wherein, described single-chip microcomputer, described radio-frequency transmissions chip 1, described radio-frequency transmissions chip 2, described light emitting diode and described radio-frequency antenna are welded on the described substrate by surface mount process (SMT); Described button cell provides the power supply of DC 3V for described single-chip microcomputer and described radio-frequency transmissions chip.
Two utmost point luminotrons are set to, if the user was lighted when pressing any button;
The digital signal that described radio-frequency transmissions chip 1 is set to send from single-chip microcomputer is modulated into the radiofrequency signal that frequency is 315MHz by its inner high-frequency oscillating circuits; The digital signal that described radio-frequency transmissions chip 2 is set to send from single-chip microcomputer is modulated into the radiofrequency signal that frequency is 433MHz by its inner high-frequency oscillating circuits.
Described radio-frequency antenna is set to, and described radiofrequency signal is radiated the external world.
Described single-chip microcomputer is set to, after the user presses any button, at single-chip microcomputer input pin 1, use the first-order filtering circuit in 2 and 3 the peripheral circuit, if the user presses the time of any button less than a threshold value (800 milliseconds), then single-chip microcomputer activates radio-frequency transmissions chip 1 by pin 6 pio chip enable signals, forbid pin 8 pio chip enable signals simultaneously, thereby forbid 2 work of radio-frequency transmissions chip, in pin 7, export RF data signal then, because the radio-frequency transmissions chip is under an embargo for 2 this moments, so the RF data signal of pin 7 outputs can only be received by radio-frequency transmissions chip 1 this moment, the radio-frequency transmissions chip 1 that enables is then understood its modulation and transmission, thereby finishes the transmission of 315MHz.After finishing transmission this time, single-chip microcomputer is forbidden pin 6 pio chip enable signals immediately, thereby forbid 1 work of radio-frequency transmissions chip, then by pin 8 pio chip enable signals, activate radio-frequency transmissions chip 2, the same RF data signal of output and last time emission is exported to the radio-frequency transmissions chip 2 that is enabled in pin 7, with its modulation and transmission, finish the transmission of 433MHz.
Time is greater than a threshold value (800 milliseconds) if button is pressed, then single-chip microcomputer is selected a transmission frequency at random, if selected the 315MHz frequency, then single-chip microcomputer is by pin 6 pio chip enable signals, activate radio-frequency transmissions chip 1, forbid pin 8 pio chip enable signals simultaneously, thereby forbid 2 work of radio-frequency transmissions chip, in pin 7, export RF data signal then, because the radio-frequency transmissions chip is under an embargo for 2 this moments, so the RF data signal of pin 7 outputs can only be received by radio-frequency transmissions chip 1 this moment, the radio-frequency transmissions chip 1 that enables is then understood just its modulation and transmission, thereby finishes the transmission of 315MHz.Owing to only use a high-frequency emission chip, the high-frequency signal that sends in other words has only a frequency in this situation, even when having the people to adopt the long button of malice like this, also can't disturb the wireless radio frequency remote control launcher signal.But owing to remote control transmitter is only supported single-frequency point work and can't be disturbed short two-frequency signal on time long on time, so the anti-interference of remote control transmitter has obtained very big enhancing.
Be preferred embodiment of the present utility model only below, be not limited to the utility model.In the above-described embodiments, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. an automobile wireless remote control transmitter, comprise: substrate, single-chip microcomputer, the first radio-frequency transmissions chip, the second radio-frequency transmissions chip, light emitting diode and radio-frequency antenna, wherein, described single-chip microcomputer, the described first radio-frequency transmissions chip, the described second radio-frequency transmissions chip, described light emitting diode and described radio-frequency antenna are welded on the described substrate by surface mount process (SMT);
Two utmost point luminotrons are set to, if the user was lighted when pressing any button;
Described single-chip microcomputer is set to, if the user presses the time of any button less than a threshold value, then send digital signal and activate the first radio-frequency transmissions chip, after finishing the activation first radio-frequency transmissions chip, single-chip microcomputer sends digital signal immediately and forbids the described first radio-frequency transmissions chip, and the transmission digital signal activates the second radio-frequency transmissions chip; If the time that the user presses any button greater than described threshold value, then only sends digital signal and activates the first radio-frequency transmissions chip or only send digital signal and activate the second radio-frequency transmissions chip;
Described first radio-frequency transmissions chip and the described second radio-frequency transmissions chip are set to, and will pass through its inner high-frequency oscillating circuits from the digital signal that single-chip microcomputer sends, and are modulated into the radiofrequency signal with certain frequency;
Described radio-frequency antenna is set to, and described radiofrequency signal is radiated the external world.
2. wireless remote control emitter according to claim 1 is characterized in that, the digital signal that the described first radio-frequency transmissions chip is set to send from single-chip microcomputer is modulated into the radiofrequency signal that frequency is 315MHz by its inner high-frequency oscillating circuits; The digital signal that the described second radio-frequency transmissions chip is set to send from single-chip microcomputer is modulated into the radiofrequency signal that frequency is 433MHz by its inner high-frequency oscillating circuits.
3. wireless remote control emitter according to claim 1 and 2 is characterized in that, also comprises a button cell, and it provides the power supply of DC 3V for described single-chip microcomputer and described radio-frequency transmissions chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201126235U CN201522777U (en) | 2010-02-11 | 2010-02-11 | Automobile wireless remote-control emitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201126235U CN201522777U (en) | 2010-02-11 | 2010-02-11 | Automobile wireless remote-control emitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201522777U true CN201522777U (en) | 2010-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201126235U Expired - Lifetime CN201522777U (en) | 2010-02-11 | 2010-02-11 | Automobile wireless remote-control emitter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255957A (en) * | 2012-02-20 | 2013-08-21 | 福建天立源机电设备有限公司 | Method for judging location of transponder |
| CN104038801A (en) * | 2014-05-30 | 2014-09-10 | 四川长虹电器股份有限公司 | System and method for realizing rapid silencing of set-top box |
| CN105516766A (en) * | 2014-09-25 | 2016-04-20 | 联想(北京)有限公司 | Remote-control sending device and method and remote-control receiving device and method |
| CN110199330A (en) * | 2017-02-06 | 2019-09-03 | 金泰克斯公司 | Selectivity transmits order associated with single transceiver channel |
| CN110291568A (en) * | 2017-02-10 | 2019-09-27 | 金泰克斯公司 | Utilize the individual channel training of trainable transceiver and multiple functions of control remote-control device |
| CN111260904A (en) * | 2020-02-19 | 2020-06-09 | 东风电子科技股份有限公司 | Double-key remote control key |
-
2010
- 2010-02-11 CN CN2010201126235U patent/CN201522777U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255957A (en) * | 2012-02-20 | 2013-08-21 | 福建天立源机电设备有限公司 | Method for judging location of transponder |
| CN103255957B (en) * | 2012-02-20 | 2015-05-20 | 福建天立源机电设备有限公司 | Method for judging location of transponder |
| CN104038801A (en) * | 2014-05-30 | 2014-09-10 | 四川长虹电器股份有限公司 | System and method for realizing rapid silencing of set-top box |
| CN105516766A (en) * | 2014-09-25 | 2016-04-20 | 联想(北京)有限公司 | Remote-control sending device and method and remote-control receiving device and method |
| CN110199330A (en) * | 2017-02-06 | 2019-09-03 | 金泰克斯公司 | Selectivity transmits order associated with single transceiver channel |
| CN110199330B (en) * | 2017-02-06 | 2021-07-23 | 金泰克斯公司 | Selective transmission of commands associated with a single transceiver channel |
| CN110291568A (en) * | 2017-02-10 | 2019-09-27 | 金泰克斯公司 | Utilize the individual channel training of trainable transceiver and multiple functions of control remote-control device |
| CN111260904A (en) * | 2020-02-19 | 2020-06-09 | 东风电子科技股份有限公司 | Double-key remote control key |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |
|
| CX01 | Expiry of patent term |