WO2017045093A1

WO2017045093A1 - Passive remote control switch and remote control system applying the passive remote control switch

Info

Publication number: WO2017045093A1
Application number: PCT/CN2015/000929
Authority: WO
Inventors: 何兆龙
Original assignee: 何兆龙
Priority date: 2015-09-16
Filing date: 2015-12-28
Publication date: 2017-03-23
Also published as: CN105160859A

Abstract

A passive remote control switch and a remote control system applying the passive remote control switch. The passive remote control switch comprises a housing and a button arranged on the housing, an encoding circuit and a transmitting circuit are further arranged in the housing, and an encoding signal generated by the encoding circuit is transmitted via the transmitting circuit; and further comprised is an electric energy conversion unit which is arranged in the housing and supplies power to the encoding circuit and the transmitting circuit; the electric energy conversion unit comprises a permanent magnet and an inductance coil, and head and tail ends of the inductance coil constitute an electric energy output end for supplying power to the encoding circuit and the transmitting circuit; when the button is pressed, the button drives the permanent magnet to generate a displacement, so that the inductance coil moves relative to the permanent magnet and vertically cuts a magnetic force line of the permanent magnet to enable the head and tail ends of the inductance coil to generate an induced electromotive force.

Description

Passive remote control switch and remote control system using the same

Technical field

The invention relates to a switch and a control system, in particular to a passive remote control switch and a control system using the passive remote control switch.

Background technique

With the development of industrial control and sensing technology, the application of various sensors and control switches has become more and more common. In the application environment of intelligent buildings and smart homes, a large number of sensors are needed to collect the temperature, humidity, state and switch control information of all corners of the building, and also need to send the information collected by these sensors and various commands of the user to the receiving. end. In order to avoid excessive wiring in the room, the information collected by these sensors needs to be sent in a wireless form to save construction costs and reduce the workload of the decoration.

At present, the wireless remote control system used in various situations is composed of two parts: remote control transmission and remote control reception, and the output signal of the remote control receiving part is generally used to control the electrical equipment powered by the mains, so that the power supply of the remote control receiving part is obtained. Part is not a problem, but the remote control transmission part generally needs to change the position at any time. In order to solve the power supply problem, the button battery or the dry battery is generally used for power supply, and the button battery or the dry battery capacity is small, so the service life of the remote control part battery is better. short. This kind of power supply method wastes the cost and generates electronic waste due to the scrapping of the battery, which seriously affects the environmental protection!

Summary of the invention

The present invention is directed to the disadvantages of the prior art, and provides a passive remote control switch and a remote control system using the passive remote control switch.

The passive remote control switch of the present invention comprises a housing and a button disposed on the housing, wherein the housing is further provided with an encoding circuit and a transmitting circuit, and the encoded signal generated by the encoding circuit is transmitted through the transmitting circuit; ,

The utility model further includes an electric energy conversion unit disposed in the housing and supplying power to the encoding circuit and the transmitting circuit;

The electric energy conversion unit includes a permanent magnet and an inductive coil, and the first and second ends of the inductive coil are formed as an electric energy output end of the encoding circuit and the transmitting circuit;

When the button is pressed, the button drives the permanent magnet to generate displacement, so that the inductor coil moves relative to the permanent magnet and vertically cuts magnetic lines of force of the permanent magnet to make the first and second ends of the inductor coil The end generates an induced electromotive force.

The passive remote control switch of the present invention further includes an elastic energy storage component disposed between the button and the permanent magnet;

When the button is pressed, the button drives the elastic energy storage element to store kinetic energy;

When the button is released, the elastic energy storage element releases the stored kinetic energy to drive the permanent magnet to generate displacement.

The passive remote control switch of the present invention further includes a rectifier circuit and a storage capacitor disposed at the front end of the encoding circuit and the transmitting circuit;

Wherein, the two input ends of the rectifier circuit are respectively connected to the first and second ends of the inductor coil to rectify the induced electromotive force generated at the first and second ends of the inductor coil into a direct current;

The storage capacitor is disposed between the rectifier circuit and the encoding circuit and the transmitting circuit, and the storage capacitor is charged by the rectifier circuit; when the voltage on the storage capacitor reaches a predetermined value, the encoding circuit is The transmitting circuit is powered.

The present invention also provides a remote control system using the aforementioned passive remote control switch, comprising a passive remote control switch and a corresponding signal receiving unit, the signal receiving unit receiving a control command of the passive remote control switch and driving the corresponding according to the control instruction Electrical equipment;

The passive remote control switch includes a housing and a button disposed on the housing, wherein the housing is further provided with an encoding circuit and a transmitting circuit, and the encoded signal generated by the encoding circuit is transmitted through the transmitting circuit;

When the button is pressed, the button drives the permanent magnet to generate displacement, so that the inductor coil moves relative to the permanent magnet and vertically cuts magnetic lines of force of the permanent magnet to make the first and second ends of the inductor coil The end generates an induced electromotive force;

The signal receiving unit includes a signal receiving circuit, a decoding circuit, a trigger circuit, a voltage conversion circuit, and a driving relay;

The voltage conversion circuit converts the commercial power into direct current, and supplies the signal receiving circuit, the decoding circuit, and the trigger circuit, respectively;

The signal receiving circuit receives an encoded signal sent by the passive remote control switch, and the received encoded signal is decoded by the decoding circuit to obtain a control signal that meets a predetermined rule;

The trigger circuit sends a trigger signal to the driving relay according to the control signal, and the driving relay drives the corresponding electrical device according to the trigger signal.

In the remote control system using the passive remote control switch according to the present invention, the passive remote control switch further includes an elastic energy storage component disposed between the button and the permanent magnet;

In the remote control system using the passive remote control switch according to the present invention, the passive remote control switch further includes a rectifier circuit and a storage capacitor disposed at the front end of the encoding circuit and the transmitting circuit;

In the remote control system using the passive remote control switch according to the present invention, the encoded signal includes address code information, data code information, and synchronization code information.

The passive remote control switch of the present invention and the remote control system using the passive remote control switch can completely deviate from the limitation of the battery power in the remote control switch in the prior art, and can be remotely controlled by using the passive remote control switch anytime and anywhere. Convenient and environmentally friendly.

DRAWINGS

1 is a schematic structural view of a passive remote control switch according to the present invention;

2 is a schematic structural diagram of a signal receiving unit in a remote control system using a passive remote control switch according to the present invention.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can refer

As shown in FIG. 1 , the passive remote control switch of the present invention comprises a housing and a button disposed on the housing, and an encoding circuit and a transmitting circuit are further disposed in the housing, and the encoded signal generated by the encoding circuit is Transmitting through the transmitting circuit; further comprising a power conversion unit disposed in the housing to supply power to the encoding circuit and the transmitting circuit.

The electric energy conversion unit may include a permanent magnet and an inductive coil, and the first and second ends of the inductive coil are configured as an electric energy output end of the encoding circuit and the transmitting circuit. When the button is pressed, the button drives the permanent magnet to generate displacement, so that the inductor coil moves relative to the permanent magnet and vertically cuts magnetic lines of force of the permanent magnet to make the first and second ends of the inductor coil The end generates an induced electromotive force. The induced electromotive force provides operating power to the encoding circuit and the transmitting circuit.

Further, for ease of use, an elastic energy storage element (for example, a spring piece) may be disposed between the button and the permanent magnet. When the button is pressed, the button drives the elastic energy storage element to store kinetic energy; when the button is released, the elastic energy storage element releases the stored kinetic energy to drive the permanent magnet to generate displacement.

The passive remote control switch of the present invention may further include a rectifying circuit and a storage capacitor disposed at the front end of the encoding circuit and the transmitting circuit. The two input ends of the rectifier circuit are respectively connected to the first and second ends of the inductor coil to rectify the induced electromotive force generated at the first and second ends of the inductor coil into a direct current. The storage capacitor is disposed between the rectifier circuit and the encoding circuit and the transmitting circuit, and the storage capacitor is charged by the rectifier circuit; when the voltage on the storage capacitor reaches a predetermined value, the encoding circuit is And the transmitting circuit is powered.

By applying the passive remote control switch of the invention, the control of the battery in the remote control switch of the prior art can be completely eliminated, and the passive remote control switch can be used for remote control at any time and anywhere. And environmentally friendly.

The present invention also provides a remote control system using the above passive remote control switch, comprising a passive remote control switch and a corresponding signal receiving unit, the signal receiving unit receiving a control command of the passive remote control switch and driving according to the control command Corresponding electrical equipment.

Specifically, the passive remote control switch is as described above and will not be described herein.

As shown in FIG. 2, the signal receiving unit includes a signal receiving circuit, a decoding circuit, a trigger circuit, a voltage converting circuit, and a driving relay.

Wherein, the voltage conversion circuit converts the commercial power into direct current (that is, converts 220 volts of alternating current to 5 volts of direct current), and supplies the signal receiving circuit, the decoding circuit, and the trigger circuit, respectively.

The signal receiving circuit receives an encoded signal sent by the passive remote control switch, and the received encoded signal is decoded via the decoding circuit to obtain a control signal conforming to a predetermined rule. The trigger circuit sends a trigger signal to the driving relay according to the control signal, and the driving relay drives the corresponding electrical device according to the trigger signal.

It should be noted that the coding circuit in the passive remote control switch is matched with the decoding circuit, and the two have a pre-agreed communication protocol. For example, if the encoding circuit uses the PT2262 chip, the decoding circuit can be used with the PT2272.

The PT2262 chip of the encoding circuit generates an encoded signal with address code information, data code information, and synchronization code information, and transmits it through a transmitting circuit. The signal receiving circuit is a high frequency receiving circuit, and the received signal is amplified and selected. Since the signal is amplified and selected by the high frequency portion, the received encoded signal is subjected to code address confirmation by the PT 2272 of the decoding circuit to separate the desired electrical signal and confirm whether it is a useful switch address signal. If a useful coded signal is received, the output of the PT2272 of the decoding circuit generates a corresponding high and low level signal to the trigger circuit, and the state of the trigger circuit changes and remains in the changed state (ie, from a high level to a low level or From low level to high level, the trigger circuit generates an effective signal to control the drive relay to be turned on, and the consumer starts to work; if the received code is not a useful coded signal, the decoding circuit cannot decode and generate a valid signal to drive the relay. If it does not work, the working status of the electrical appliances in the circuit does not change.

In addition, for the case where a plurality of sensors are arranged in the same piece area, it is also possible to avoid interference between pulses of different sensors by controlling the pulse intervals of different sensors. On the side of the passive remote control switch, The pulse interval corresponds to the fixed ID information or the pseudo random number generated by the M sequence generator, and the data encoded by the encoding circuit is modulated and transmitted to the pulse; and when the sent information reaches the signal receiving unit, the signal receiving unit determines whether to receive The correct information pulse is reached. If it is judged that the correct pulse information has been received, the received pulse signal is decoded, and the drive relay responds based on the decoded signal. Pulses with the same information are sent multiple times repeatedly, and the use of such multiple repeated transmissions can improve the accuracy of data transmission.

The encoding pairing principle of the PT2262 chip in the encoding circuit and the PT2272 in the decoding circuit is as follows: the encoded signal generated by the PT2262 chip is a complete codeword consisting of an address code, a data code, and a synchronization code information, and the codeword is composed of The 17-pin output of the PT2262 chip is transmitted to the transmitting circuit and transmitted.

After receiving the codeword, the signal receiving circuit sends it to the decoding circuit for decoding by the chip PT2272. After the address code in the encoded signal is verified by 3 comparisons, the VT pin of the PT2272 chip outputs a high level, and at the same time, the corresponding data pin of the PT2262 chip also outputs a high level. If the PT2262 chip continuously transmits the encoded signal, the 17th pin of the PT2272 chip and the corresponding data pin continuously output a high level. If the PT2262 chip stops transmitting the encoded signal, the VT terminal of the PT2272 chip returns to the low state.

In order to ensure that the PT2272 chip can continuously output a high level after the PT2262 chip transmits the encoded signal, the signal receiving unit can also connect the dual D flip-flop CD4013 after the decoding chip PT2272, so that the VT terminal of the PT2272 chip outputs the logic level to the double. The D terminal of the D flip-flop CD4013, correspondingly the D terminal of the double D flip-flop CD4013 is inverted to the original state, from the original high level to the low level or from the original low level to the high level, thereby Control the drive relay to control the household appliances. In this way, the passive remote control switch can be used to indirectly control the operation or stop of the home appliance by pressing the switch key.

A description of the setting and modification of the address code in the encoded signal. In normal use, 8-bit address code and 4-bit data code are generally used. At this time, the PT2262 chip of the encoding circuit and the first to eighth pins of the PT2272 chip of the decoding circuit are address setting pins, and three states are available for selection. There are three states: floating, positive power supply and grounding. The corresponding status symbols are x (floating), 1 (positive power), and 0 (ground). Only the address codes of PT2262 and PT2272 are identical and can be paired. For example, ground the 2nd pin of the PT2262 chip, connect the 3rd pin to the positive power supply, and leave the other pins floating. The address is coded as X01xxxxx; then the PT2272 chip only needs to ground the second pin, the third pin is connected to the positive power supply, the other pins are left floating, and the corresponding address code is x01xxxxx, so that paired reception can be realized. When the address codes of the two are completely identical, the D1-D4 terminal corresponding to the PT2272 outputs a high-level control signal of about 4V interlocking, and the VT terminal also outputs a decoding effective high-level signal. The user can add these signals to the primary transistor to amplify and drive the relay and other loads for remote control. The principle of setting the address code is: the address codes of the same system must be the same; different systems can be distinguished by different address codes.

The PT2262 chip and the PT2272 chip must be identical in address code, and the oscillating resistor must also match, otherwise the receiving distance will become close or even unacceptable. In a specific application, the external oscillating resistor can be appropriately adjusted as needed. The larger the resistance, the lower the oscillating frequency, the larger the width of the code, and the longer the time to send a frame.

Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the embodiments, and are fully applicable to various fields suitable for the present invention, and are easily accessible to those skilled in the art. The invention is not limited to the specific details and the details shown and described herein, without departing from the scope of the appended claims.

Claims

A passive remote control switch includes a housing and a button disposed on the housing, wherein the housing is further provided with an encoding circuit and a transmitting circuit, and the encoded signal generated by the encoding circuit is transmitted through the transmitting circuit; as well as,

The utility model further includes an electric energy conversion unit disposed in the housing and supplying power to the encoding circuit and the transmitting circuit;

The electric energy conversion unit includes a permanent magnet and an inductive coil, and the first and second ends of the inductive coil are formed as an electric energy output end of the encoding circuit and the transmitting circuit;

When the button is pressed, the button drives the permanent magnet to generate displacement, so that the inductor coil moves relative to the permanent magnet and vertically cuts magnetic lines of force of the permanent magnet to make the first and second ends of the inductor coil The end generates an induced electromotive force.
The passive remote control switch of claim 1 further comprising an elastic energy storage element disposed between the button and the permanent magnet;

When the button is pressed, the button drives the elastic energy storage element to store kinetic energy;

When the button is released, the elastic energy storage element releases the stored kinetic energy to drive the permanent magnet to generate displacement.
The passive remote control switch according to claim 2, further comprising a rectifying circuit and a storage capacitor disposed at a front end of the encoding circuit and the transmitting circuit;

Wherein, the two input ends of the rectifier circuit are respectively connected to the first and second ends of the inductor coil to rectify the induced electromotive force generated at the first and second ends of the inductor coil into a direct current;

The storage capacitor is disposed between the rectifier circuit and the encoding circuit and the transmitting circuit, and the storage capacitor is charged by the rectifier circuit; when the voltage on the storage capacitor reaches a predetermined value, the encoding circuit is The transmitting circuit is powered.
A remote control system for applying the passive remote control switch according to claim 1, comprising a passive remote control switch and a corresponding signal receiving unit, wherein the signal receiving unit receives a control command of the passive remote control switch and according to the control Commanding and driving the corresponding electrical equipment;

The passive remote control switch includes a housing and a button disposed on the housing, wherein the housing is further provided with an encoding circuit and a transmitting circuit, and the encoded signal generated by the encoding circuit is transmitted through the transmitting circuit Launched; and,

The utility model further includes an electric energy conversion unit disposed in the housing and supplying power to the encoding circuit and the transmitting circuit;

The electric energy conversion unit includes a permanent magnet and an inductive coil, and the first and second ends of the inductive coil are formed as an electric energy output end of the encoding circuit and the transmitting circuit;

When the button is pressed, the button drives the permanent magnet to generate displacement, so that the inductor coil moves relative to the permanent magnet and vertically cuts magnetic lines of force of the permanent magnet to make the first and second ends of the inductor coil The end generates an induced electromotive force;

The signal receiving unit includes a signal receiving circuit, a decoding circuit, a trigger circuit, a voltage conversion circuit, and a driving relay;

The voltage conversion circuit converts the commercial power into direct current, and supplies the signal receiving circuit, the decoding circuit, and the trigger circuit, respectively;

The signal receiving circuit receives an encoded signal sent by the passive remote control switch, and the received encoded signal is decoded by the decoding circuit to obtain a control signal that meets a predetermined rule;

The trigger circuit sends a trigger signal to the driving relay according to the control signal, and the driving relay drives the corresponding electrical device according to the trigger signal.
The remote control system for applying a passive remote control switch according to claim 4, wherein the passive remote control switch further comprises an elastic energy storage element disposed between the button and the permanent magnet;

When the button is pressed, the button drives the elastic energy storage element to store kinetic energy;

When the button is released, the elastic energy storage element releases the stored kinetic energy to drive the permanent magnet to generate displacement.
The remote control system for applying a passive remote control switch according to claim 5, wherein the passive remote control switch further comprises a rectifying circuit and a storage capacitor disposed at a front end of the encoding circuit and the transmitting circuit;

Wherein, the two input ends of the rectifier circuit are respectively connected to the first and second ends of the inductor coil to rectify the induced electromotive force generated at the first and second ends of the inductor coil into a direct current;

The storage capacitor is disposed between the rectifier circuit and the encoding circuit and the transmitting circuit, and the storage capacitor is charged by the rectifier circuit; when the voltage on the storage capacitor reaches a predetermined value, the encoding circuit is The transmitting circuit is powered.
A remote control system using a passive remote control switch according to claim 6, wherein said encoded signal comprises address code information, data code information, and synchronization code information.