CN2547830Y - A remote control device for a lock - Google Patents

Abstract

The utility model is a remote control device for a lock, which is composed of a remote control transmitter and a receiver. The transmitter is composed of a transmitting circuit, and a function button is arranged on its surface. The receiver is formed by connecting a power supply circuit, a remote control receiving circuit, a coding circuit and a lock control circuit. Since the remote control transmitter and the receiver of the utility model only use a few common simple circuits, the electronic components contained in the remote control transmitter and the receiver are relatively small, and the utility model has the characteristics of simple structure, easy processing, low cost, and small size of the transmitter and the receiver, which is suitable for installation and use in ordinary families. The receiver of the utility model can also be connected with other electrical appliances to realize remote control of other electrical appliances, and has a wide range of applications.

Description

A remote control device for a lock

1. Technical field

The utility model relates to a remote control device, in particular to a remote control device for locks.

2. Background technology

With the development of science and technology and the improvement of people's living standards, more and more remote control devices have entered the family, such as television sets, air conditioners and the like. The application of these remote control devices has brought great convenience to people's lives. The remote control devices of locks have not yet been popularized in ordinary families. The main reason is that the remote control devices of existing locks are mostly used in professional fields. The remote control devices of these locks are complex in design and processing, and the transmitter and receiver are relatively large. 1. The transmitter is inconvenient to be carried around as a key, and the price is relatively expensive, so it is not suitable for installation and use in ordinary households at present.

3. Contents of the invention

The purpose of the utility model is to provide a remote control device for a lock with simple structure, easy processing, low cost, and small transmitter and receiver.

The technical solution for realizing the purpose of the utility model is that it is composed of a remote control transmitter and a receiver, the transmitter is composed of a transmitting circuit, and its receiver is formed by connecting a power supply circuit, a remote control receiving circuit, a codec circuit and a lock control circuit.

The positive effect of the utility model is: because the remote control transmitter and the receiver only adopt several common simple circuits, so it contains fewer electronic components, and has the advantages of simple structure, easy processing, low cost, and small size of the transmitter and receiver. Small features, suitable for the installation and use of the majority of ordinary families. When in use, the receiver is fixedly installed on the wall, the output terminal of the lock control circuit is connected with the electric control lock, the remote control transmitter sends out an unlock signal, and the receiving circuit in the receiver receives the signal and amplifies and shapes it, Send it to the codec circuit for code comparison. When the code is correct, a high-level pulse will be sent to the lock control circuit, and then the lock control circuit will open the lock.

4. Description of drawings

Accompanying drawing 1 is the structural representation of the present utility model, comprises transmitter and receiver two;

Accompanying drawing 2 is the principle block diagram of the utility model;

Accompanying drawing 3 is the circuit diagram of transmitter of the present utility model;

Accompanying drawing 4 is the circuit diagram of the utility model receiver.

5. Specific implementation

Below in conjunction with accompanying drawing, circuit structure and working process of the present utility model are further described.

As shown in accompanying drawings 1 and 2, the utility model is composed of a remote control transmitter 1 and a receiver 2. The transmitter 1 is composed of a transmitting circuit, and its receiver 2 is composed of a power supply circuit, a remote control receiving circuit, a codec circuit and a lock control circuit. connected. Among them, the transmitting circuit is composed of a high-frequency oscillator and an encoder. In Figure 3, C ₁ , C ₂ , C ₃ , C ₄ , L ₁ , L ₂ , Q, R ₂ , and C ₆ constitute a high-frequency oscillator. C ₁ can change its output frequency; IC ₄ and R ₃ , R ₄ , R ₅ , R ₆ , D ₁ , D ₂ , D 3 , D ₄ , K ₁ , K _{2 ,} K ₃ , K ₄ form an encoder, Among them, K ₁ , K ₂ , K ₃ , and K ₄ correspond to the four buttons 3 on the transmitter, press any of them, and the four output terminals of IC ₄ correspond to output a set of codes, which are sent to the base of Q through R ₁ Modulate the radio wave transmission, the four buttons 3 respectively correspond to the four different functions of "remote control unlocking and turning on and off lights at the same time", "remote control unlocking", "remote control turning on lights and turning off lights with delay", "remote control on and off lights" transmit a signal. The circuit of the receiver is shown in Figure 4. The power circuit is composed of a transformer, a rectifier bridge stack, a voltage regulator tube, R ₁₂ , C ₁ , C ₁₀ , and C _21. The 220-volt voltage is stepped down by the transformer and then rectified to output 12 volts. The voltage is supplied to other functional circuits. Of course, the power supply circuit can also be directly a 12-volt DC power supply. Its remote control receiving circuit is composed of super regenerative receiving circuit and operational amplifier, C ₂ , C ₃ , C ₄ , C ₅ , C ₆ , L ₁ , L ₂ , R ₁ , R ₂ , R ₃ , R, D ₁ are connected In the super regenerative receiving circuit, the received center frequency is verified by L ₁ , and D ₁ is a detection diode. After the signal is received, it is detected by D ₁ and then filtered by R ₄ and C ₇ , and then coupled to IC ₁ , C ₉ by C 9 The operational amplifier composed of R ₇ , R ₉ , R ₈ , C ₈ , C ₁₁ , and R ₁₀ is amplified and shaped, and sent to the codec circuit; the codec circuit is composed of IC ₂ and R ₁₁ , and the four output terminals of IC ₂ Corresponding to the frequencies of the four output terminals of the transmitting circuit, when the code is correct, IC ₂ will output a high-level pulse, which will be sent to the unlocking circuit through diode D ₂ ; the unlocking circuit consists of R ₁₃ , C ₁₃ , Q ₂ , J ₁ , D ₃ components, the high-level pulse charges C ₁₃ through R ₁₃ , Q ₂ is saturated and turned on, the relay J ₁ is pulled in, and a voltage is output to the electric control lock to open the lock.

In order to enable the utility model to remotely turn on the lights and delay turn off the lights at the same time as unlocking by remote control, a light control circuit is connected to the codec circuit. The light control circuit is composed of a photosensitive circuit, a delay circuit, a trigger and a switch circuit. . The high-level pulse output by the codec circuit IC ₂ is sent to the photosensitive circuit and the delay circuit in addition to the diode D ₂ to the unlocking circuit. In Figure 3, the photosensitive tube is composed of photosensitive tube _Q5 . During the day, _Q5 is in a low-resistance state, and high-level pulses are filtered out to the ground. At night, _Q5 is in a high-resistance state, and high-level pulses are directly sent to the delay Time circuit; the delay circuit is composed of C ₁₂ , R ₁₅ , R ₁₆ , R ₁₇ , R ₁₈ , and Q _3. The high-level pulse charges C ₁₂ , Q ₃ is saturated and turned on, and a high level is output from the e pole. Since the high charging level of C ₁₂ is maintained until the discharge voltage of C ₁₂ is lower than a certain set value, the high level output by e pole is sent to the switch circuit; the switch circuit is composed of Q ₄ , diode D ₅ and relay J ₂ composition, the high level is sent to the base of _Q4 , _Q4 is saturated and turned on, _J2 is pulled in, and the light is on; when the high level passes, _Q4 is cut off, _J2 is turned on, and the light is off. Complete the delayed light off function.

To realize the function of turning on and off the light by using the transmitter 1, press the "remote control on and off the light" key among the four buttons 3 on the transmitter, and the D ₂ terminal of the IC ₂ will output a high-level pulse correspondingly. The high-level pulse is sent to the flip-flop through the diode. The flip-flop is composed of C ₁₅ , R ₁₉ , C ₁₆ , R ₂₁ , and IC _3. Whenever a positive pulse appears on the 3-pin CP of IC ₃ , it flips once, and its Q output terminal is directly connected to the switch circuit to control the light on and off.

In Fig. 4, R ₁₄ and LED form an indicator light circuit.

From the analysis of the above structure and principle, it can be seen that the utility model can realize multiple functions respectively: one is remote control password unlocking; The fourth is to unlock with the remote control password and turn on the lights with a delay to turn off the lights; the fifth is to turn on and turn off the lights by remote control.

When the utility model is in use, the receiver 2 is fixedly installed on the wall, its input end is connected to the mains, the output end of the lock control circuit is connected to the electric control lock, and the transmitter 1 is carried around. For specific needs, select the desired button among the four buttons 3 on the transmitter 1 and press it to complete unlocking or turn on the light, which is very convenient.

In order to make the utility model capable of both remote control and manual control, a manual control key 4 is also provided on the surface of the receiver 2 .

The receiver 2 of the utility model can also be connected with other electrical appliances such as a doorbell, and can also realize remote control of other electrical appliances, and is widely used.

Claims (6)

1. the remote control of a lockset, form by remote control transmitter (1), receiver (2), it is characterized in that transmitter (1) is made of radiating circuit, its surface is provided with function button (3), and receiver (2) is formed by connecting by power circuit, remote-control receiving circuit, coding-decoding circuit and lock control circuit.

2. the remote control of lockset according to claim 1 is characterized in that being connected with on-off circuit on coding-decoding circuit.

3. the remote control of lockset according to claim 2 is characterized in that being connected with delay circuit between coding-decoding circuit and on-off circuit.

4. the remote control of lockset according to claim 2 is characterized in that being connected with trigger between coding-decoding circuit and on-off circuit.

5. the remote control of lockset according to claim 3 is characterized in that being connected with photosensitive circuit between coding-decoding circuit and delay circuit.

6. according to the remote control of claim 1 or 2 or 3 or 4 or 5 described locksets, it is characterized in that on receiver (2) surface, also being provided with manual key (4).

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