CN203858747U - Anti-interference wireless remote control switch - Google Patents
Anti-interference wireless remote control switch Download PDFInfo
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- CN203858747U CN203858747U CN201420253880.9U CN201420253880U CN203858747U CN 203858747 U CN203858747 U CN 203858747U CN 201420253880 U CN201420253880 U CN 201420253880U CN 203858747 U CN203858747 U CN 203858747U
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Abstract
The utility model discloses an anti-interference wireless remote control switch which comprises a transmitting part and a receiving part, wherein the transmitting part comprises a key circuit, an encoding circuit and a wireless transmitting circuit; the receiving part comprises a wireless receiving module, a decoding module, a relay circuit and a switching circuit; the signal output end of the key circuit is connected with the signal input end of the wireless transmitting circuit through the encoding circuit; the signal output end of the wireless receiving module is connected with the signal input end of the switching circuit through the decoding circuit and the relay circuit sequentially. Compared with the prior art, the anti-interference wireless remote control switch has the advantages that the transmitting part consists of an encoding circuit comprising PT2262 and a simple peripheral circuit and a 315MHz transmitting unit circuit at the transmitting end, and the receiving part consists of a decoding circuit comprising PT2272 and a few peripheral circuits, a D trigger and a high-frequency receiving unit circuit. The wireless remote control switch has the advantages of simple structure, low cost and low power consumption, particularly has extremely high interference resistance and has high popularization and application values.
Description
Technical field
The utility model relates to a kind of radio remote control switch, and relating in particular to one can jamproof radio remote control switch.
Background technology
Along with the high speed development of modern communication technology and electronic technology, the short range transmission of wireless communication technology has a great development advantage, thereby more and more people goes to pay close attention to and research.In our life, there is such or such service condition, such as system needs to transmit the burst of real-time a small amount of sometimes, although radio communication in the past also can realize the requirement of this respect, but often spend high, power consumption is also large, therefore we just need to find low price, low in energy consumption, the radio communication of transmitting in short distance.Especially the place that we will be difficult to cover at traditional wireless communication system, for the transmission of wireless communication technology, we realize intercom mutually within closely [1].The field of wireless transmitting system application is more and more wider, comprises anti-theft device, wireless switching, and the scopes such as WLAN (wireless local area network), it is very important that its value becomes.And circuit structure complexity, the cost of radio remote control switch of the prior art are high, power consumption is high, especially, a little less than antijamming capability, therefore there is room for improvement.
Utility model content
The purpose of this utility model is just to provide in order to address the above problem the one can jamproof radio remote control switch.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises radiating portion and receiving unit, described radiating portion comprises key circuit, coding circuit and radio transmitter, described receiving unit comprises wireless receiving module, decoding circuit, relay circuit and on-off circuit, the signal output part of described key circuit is connected with the signal input part of described radio transmitter by described coding circuit, and the signal output part of described wireless receiving module is connected with the signal input part of described on-off circuit with described relay circuit by described decoding circuit successively.
Further, described coding circuit adopts the coding chip of model PT2262, and button one end of described key circuit is connected with the data pin D2 of described coding chip end; Described decoding circuit adopts the decoding chip of model PT2272; Described relay circuit adopts the trigger of model C D4043.
The beneficial effects of the utility model are:
The utility model is that one can jamproof radio remote control switch, compared with prior art, the utility model transmitting terminal is added by PT2262 that simple peripheral circuit forms coding circuit and 315MHz transmitter unit circuit forms radiating portion jointly, and receiving unit adds by PT2272 decoding circuit, d type flip flop and the high frequency receiving element circuit that a small amount of peripheral circuit forms and jointly forms.Have advantages of simple in structure, with low cost, low in energy consumptionly, especially there is very high antijamming capability, there is the value of promoting the use of.
Brief description of the drawings
Fig. 1 is radiating portion structural principle block diagram of the present utility model;
Fig. 2 is receiving unit structural principle block diagram of the present utility model;
Fig. 3 is radiating portion circuit structure diagram of the present utility model;
Fig. 4 is the circuit structure diagram of key circuit in Fig. 1;
Fig. 5 is the circuit structure diagram of coding circuit in Fig. 1;
Fig. 6 is the circuit structure diagram of radio transmitter in Fig. 1;
Fig. 7 is the circuit structure diagram of wireless receiving module in Fig. 2;
Fig. 8 is the circuit structure diagram of decoding circuit in Fig. 2;
Fig. 9 is the circuit structure diagram of Fig. 2 repeat circuit circuit;
Figure 10 is the circuit structure diagram of on-off circuit in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As depicted in figs. 1 and 2: the utility model comprises radiating portion and receiving unit, described radiating portion comprises key circuit, coding circuit and radio transmitter, described receiving unit comprises wireless receiving module, decoding circuit, relay circuit and on-off circuit, the signal output part of described key circuit is connected with the signal input part of described radio transmitter by described coding circuit, and the signal output part of described wireless receiving module is connected with the signal input part of described on-off circuit with described relay circuit by described decoding circuit successively.
As shown in Fig. 4, Fig. 5 and Fig. 8: as described in coding circuit adopt the coding chip of model PT2262, button one end of described key circuit is held and is connected with the data pin D2 of described coding chip; Described decoding circuit adopts the decoding chip of model PT2272; Described relay circuit adopts the trigger of model C D4043.
As shown in Figure 4 and Figure 5: button is the vitals of teleswitch, make by remotely-controlled object in different duties by actuation of keys, thereby reach the object of remote control.In addition, button is also equivalent to the power switch of PT2262.Button S1000 one end is connected with coding chip PT2262 data pin D2, and one end is connected with triode in addition, makes triode conducting by actuation of keys, thereby for PT2262 provides electricity, so play the object of control coding chip operation.PT2262 mono-has four FPDP D0-D3, can be connected with four buttons respectively, and in order to draw conveniently, a Hua Liao mono-road button herein.Due to You Si road button, so have 16 kinds of states from one, it can control at most 16 path switching circuits so.Coding chip PT2262 is the core parts of radiating portion, can produce different signals by different codings, thereby reach by remotely-controlled object in different states, PT2262/PT2272 codec chip group is a kind of application codec chip very widely, its power consumption is extremely low, having the function of wireless encoding and decoding, is that native system is selected good wireless remote control transmitting and receiving chip.The chip PT2262 that wherein transmitting terminal adopts has stronger function, it is combined in one scrambler, carrier oscillator and transmitter unit, thereby its radiating circuit seems also just very simple, the advantage such as it also has power consumption low in addition, and antijamming capability is strong.The external circuit that it connects is also more clear, thereby uses easily quick.The normal working voltage of PT2262 coding chip is (2.6V-15V), A0-A11 is wherein the coding pin of address, they are that therefore this chipset can only provide the address pin from A0-A11 at the most for carrying out geocoding, and its coded address providing is limited.Wherein DO-D5 is the input pin of data, and its pin function is as shown in the table:
| Title | Pin | Explanation |
| A0-A11 | 1-8 10-13 | Address pin is to geocoding |
| D0-D5 | 7-8 10-13 | Input port |
| Vcc | 18 | Power positive end (+) |
| Vss | 9 | Power supply negative terminal (-) |
| TE | 14 | Start encoder port |
| OSC1 | 15 | The port of access oscillation resistance |
| OSC2 | 16 | Pick out the port of oscillation resistance |
| Dout | 17 | Output port after being encoded, is connected with transmitter module |
The principle of work of PT2262
The input port of transmitting chip PT2262 coded address has three kinds of not identical states, i.e. high level, low level and open circuit.Data-out port just comprises two states, i.e. high level or low level.Coded signal is made up of together different numerals, launches together from the input port that outputs to wireless transmitter module of the 17th pin output terminal Dout.In the ordinary course of things, can adopt the numeric data code of 4 and the address code of 8.PT2262 coding chip is arranged to address port from 1～8 pin by us, because it has ground connection, unsettled and connect three kinds of positive power supplys and can be selected, so geocoding just can reach 6561 kinds of combinations.By different button conducting or disconnection, make PT2262 port obtain high level 1 or low level 0.Four button S1000-S1003 four port D0-D3 data inputs of corresponding PT2262 respectively, in the time pressing key S1003, push button signalling enters coding chip through D3, coded pulse output, the carrier wave of modulation transmitter, and numeric data code can play exactly the object that different switches is made a distinction in the system of wireless switching.
As shown in Figure 6: what the frequency of operation of radiating portion adopted is 315 megahertzes, radio emitting modular circuit is low level in the time that no power is not namely worked, the data-signal of its Dout input end input is positive logic level, if when the key circuit of radiating portion is pressed without any a button, coding chip PT2262 does not just have electricity, at this moment its 17th pin is not just activated yet should be namely low level, corresponding transmitter module circuit also can not be started working, and does not now also just have signal to send.Only have the key circuit of radiating portion to have when wherein any one switch is pressed, at this moment PT2262 switches on, so state of just starting working, transmitter module also starts startup work simultaneously, the 17th pin of PT2262 is also just exported signal after treatment, if the 17th pin situation that continual stop is high level of PT2262 always, the coded pulse of its output terminal output will be to constantly modulating and then launch radio emitting modular circuit so.
As shown in Figure 3: this radiating portion comprises that the wireless transmitting unit circuit of 315MHz and the coding circuit two large divisions that PT2262 coding chip forms form.The principle of work of radiating portion circuit is such: if the key circuit in radiating portion is pressed without any a button, at this moment triode Q is in cut-off state, so namely coding chip PT2262 does not switch on power, it also just can not be worked, and wireless transmitter module is not yet just worked and do not had any signal to be launched yet so.If at this moment we press the button in S1000-S1003, this time, triode Q also will be switched on, the integrated PT2262 that encodes so obtains power supply and has also just entered duty, next it will be encoded according to the level of pin D0-D3 input, then this signal is imported into 315MHz wireless transmitting unit circuit, after its modulation, launches again.
As shown in Figure 7: the wireless receiving module oscillator of high frequency namely in fact, what the kind of oscillator much had electric capacity also have an inductance, and we adopt electric capacity here, and wherein the frequency of its vibration should be the same with radiating portion.
As shown in Figure 8: PT2272 chip is integrated in address decoding circuitry, testing circuit, oscillatory circuit and logical circuit all over the body.Its A0-A7 port is that the address of chip arranges pin, and the setting of its address code will see transmitting terminal is how to set, and should follow matching of transmitting terminal, at this moment just may have desired useful signal to be output at its output terminal.Its pin function is as shown in the table:
The way of output of PT2272:
The data carry-out bit of PT2272 decoding chip, we represent to be distinguished according to the difference of its suffix, its data output has respectively " temporary state type " mode [7] different from " latch mode type ", the band suffix " M " of " temporary type " wherein, if namely the level of data output end should with consistent and instantaneous can the variation of radiating portion.Another suffix is cry " latch-type " of " L ", and data terminal its level in the time only receiving a data-signal will be constant and can keeps always, only has that it just can change in the time having an ensuing data signal transmission to come.
The principle of work of PT2272:
After receiver module receives signal, its can first be delivered to PT2272 decoding chip the signal receiving and decodes, and only has in the time that the level of the VT pin output of PT2272 is high level and just can decode.A signal receive section of transmitting portion transmitting receives once, if PT2262 constantly sends the signal of its coding always, the 17th pin of PT2272 and corresponding data input pin are just also the output of high level always so.If now PT2262 stops sending by its coded signal, the VT of PT2272 decoding chip end will become low level output so.The rule that address code should follow is set is conventionally: if same system, require must be identical for the address code at its codec chip place so; If different systems, we just can differentiate according to their address code so.We should be set as what user ourselves address code and can select on earth.The address code of PT2262 and PT2272 must be identical, in addition its oscillation resistance also require identical, if not receive will go wrong and may also just not receive.PT2272 chip integrates address decoding circuitry, testing circuit and oscillatory circuit, A0-A7 pin is the address pin of this chip, only have and be set consistent time when the address code at receiving chip place and the address code of transmitting chip, at this moment output terminal eloquence has corresponding signal and exports.The input end DIN of PT2272 decoding chip receives from first wireless receiving module the signal that transmitting terminal is sent, and then is recognized by the decoding of its internal circuit.Only have when the address code of its received signal be to encode when identical with the coding chip of radiating portion, its data output end D0-D3 just has signal output.Otherwise also just can't be decoded.Between oscillation resistance access OSC1 and two pins of OSC2, the resistance that it connects plays conclusive effect to the concussion frequency of this part.In addition, effective confirmation end that VT is decoding chip, the Shi Houcai that is high level at it likely decodes.
As shown in Figure 9: relay belongs to electronically controlled device, can be divided into two components of system as directed one and be called as control section, another kind is known as by control section, it is generally applied in the middle of the circuit of automatic control, and summarizing in fact it with simple simon says is exactly that the large electric current of Small current control is known as the one of " automatic switch ".Relay is automatic on-off element, and it is used in the fields such as automatic control and wireless remote control in a large number, and it is also one very important in control element simultaneously.What adopt is CD4013 trigger.CD4013 is integrated trigger chip, and there are two d type flip flops just the same and function is separate its inside.The control circuit being formed by d type flip flop and relay.Relay is a kind of circuit devcie of forceful electric power, therefore can not drive with integrated chip, therefore, in CDA4013 and relay relation, must set the circuit for driving relay.Here, we adopt triode to realize this function.
As shown in figure 10: the relay circuit part in Fig. 9 has only provided its interface circuit, succeed outside in the situation of electrical equipment group and just can be connected with controlled circuit part, thus formation on-off circuit.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
- One kind can jamproof radio remote control switch, it is characterized in that: comprise radiating portion and receiving unit, described radiating portion comprises key circuit, coding circuit and radio transmitter, described receiving unit comprises wireless receiving module, decoding circuit, relay circuit and on-off circuit, the signal output part of described key circuit is connected with the signal input part of described radio transmitter by described coding circuit, the signal output part of described wireless receiving module is connected with the signal input part of described on-off circuit with described relay circuit by described decoding circuit successively.
- 2. according to claim 1 can jamproof radio remote control switch, it is characterized in that: described coding circuit adopts the coding chip of model PT2262, button one end of described key circuit is held and is connected with the data pin D2 of described coding chip.
- 3. according to claim 1 can jamproof radio remote control switch, it is characterized in that: described decoding circuit adopts the decoding chip of model PT2272.
- 4. according to claim 1 can jamproof radio remote control switch, it is characterized in that: described relay circuit adopts the trigger of model C D4043.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253880.9U CN203858747U (en) | 2014-05-19 | 2014-05-19 | Anti-interference wireless remote control switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253880.9U CN203858747U (en) | 2014-05-19 | 2014-05-19 | Anti-interference wireless remote control switch |
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| CN203858747U true CN203858747U (en) | 2014-10-01 |
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| CN201420253880.9U Expired - Fee Related CN203858747U (en) | 2014-05-19 | 2014-05-19 | Anti-interference wireless remote control switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160859A (en) * | 2015-09-16 | 2015-12-16 | 江苏兆龙电气有限公司 | Passive remote control switch and remote control system applying passive remote control switch |
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2014
- 2014-05-19 CN CN201420253880.9U patent/CN203858747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160859A (en) * | 2015-09-16 | 2015-12-16 | 江苏兆龙电气有限公司 | Passive remote control switch and remote control system applying passive remote control switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG XIANGQING Effective date: 20141211 Owner name: WEST ANHUI UNIVERSITY Free format text: FORMER OWNER: WANG XIANGQING Effective date: 20141211 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141211 Address after: 237012 Department of West Anhui University, Anhui, Lu'an Patentee after: West Anhui University Patentee after: Wang Xiangqing Address before: 237012 School of information engineering, West Anhui University, Anhui, Lu'an Patentee before: Wang Xiangqing |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20150519 |
|
| EXPY | Termination of patent right or utility model |