阅读说明：本技术 脉冲计数式红外线、可见光或紫外线传输系统 (Pulse counting type infrared, visible light or ultraviolet transmission system ) 是由 郭平 王怡 于 2020-05-27 设计创作，主要内容包括：提供了一种脉冲计数式红外线、可见光或紫外线传输系统。本发明涉及利用无线电波以外的电磁波(例如红外线、可见光或紫外线)的传输系统领域。接收系统接收电路用RC(R为光敏传感器)振荡电路接收信号,振荡电路输出的信号送到单片机(带定时器和计数器的微处理器)的计数器进行计数。光敏传感器接收到发射系统发来的光线后电阻会变化,导致RC振荡电路频率改变,计数电路在单位时间内对振荡电路输出的脉冲信号进行计数,计数值变化大的为1(或0),计数值变化小的为0(或1)。红外线、可见光或紫外线接收系统接收电路单片机定时时间未到时,工作在低功耗模式,计数器工作。单片机定时时间到后,退出低功耗模式。红外线、可见光或紫外线接收系统接收电路消耗的电流为100微安以下。(A pulse counting infrared, visible or ultraviolet transmission system is provided. The present invention relates to the field of transmission systems using electromagnetic waves other than radio waves, such as infrared, visible or ultraviolet rays. The receiving circuit of the receiving system receives signals by an RC (R is a photosensitive sensor) oscillating circuit, and the signals output by the oscillating circuit are sent to a counter of a singlechip (a microprocessor with a timer and a counter) for counting. After the photosensitive sensor receives light emitted by the emitting system, the resistance changes, so that the frequency of the RC oscillating circuit changes, the counting circuit counts pulse signals output by the oscillating circuit in unit time, the counting value changes to 1 (or 0) greatly, and the counting value changes to 0 (or 1) slightly. The receiving circuit singlechip of the infrared ray, visible light or ultraviolet ray receiving system works in a low power consumption mode when the timing time is not up, and the counter works. And after the timing time of the single chip microcomputer is up, the single chip microcomputer exits from the low power consumption mode. The current consumed by the receiving circuit of the infrared, visible or ultraviolet receiving system is less than 100 microamperes.)

1. The infrared, visible, or ultraviolet receiving system receiving circuit receives a signal using an RC (R is a photosensor) oscillation circuit.

2. The method of claim 1, further comprising forming the RC (R is a photosensor) oscillator circuit as an integrated circuit.

3. When the timing time (generating unit time) of the receiving circuit of the infrared ray, visible light or ultraviolet ray receiving system is not up, the singlechip works in a low power consumption mode.

4. The requirements of claim 1 and 3 also include that the RC (R is photosensitive sensor) oscillating circuit and the single chip microcomputer are made into an integrated circuit.

5. The infrared, visible, or ultraviolet emitting system encodes according to binary information to be transmitted, and emits infrared, visible, or ultraviolet rays at a high level (or low level) and does not emit infrared, visible, or ultraviolet rays at a low level (or high level).

Technical Field

The present invention relates to the field of transmission systems using electromagnetic waves other than radio waves, such as infrared, visible or ultraviolet, and in particular to a pulse counting infrared, visible or ultraviolet transmission system.

Background

Infrared, visible or ultraviolet transmission systems use infrared, visible or ultraviolet carriers to transmit information in space. Currently, the field of infrared, visible or ultraviolet transmission systems is also the technology of radio wave communication, only the carrier is replaced by infrared, visible or ultraviolet. For example, the infrared remote control receiving head HS0038B has the working principle that: when pulse modulation infrared signals with the frequency of 38KHz are received, the photosensitive sensor is converted into electric signals, then the electric signals are amplified by an amplifier and an automatic gain control circuit, then the electric signals are filtered by a 38KHz band-pass filter and demodulated by a demodulation circuit, and low level 0 is output, otherwise, high level 1 is output. The infrared remote control receiving head HS0038B output signal to the single chip, decoded by the single chip.

The existing infrared, visible or ultraviolet transmission system has larger power consumption of the receiving system.

Disclosure of Invention

An object of the present invention is to provide an infrared, visible or ultraviolet receiving system and an infrared, visible or ultraviolet emitting system with low power consumption.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the infrared, visible, or ultraviolet receiving system receiving circuit receives a signal using an RC (R is a photosensor) oscillation circuit.

The pulse signal output by the oscillating circuit is sent to a counter of a singlechip (a microprocessor with a timer and a counter) for counting. After the photosensitive sensor receives infrared rays, visible light or ultraviolet rays sent by an infrared ray, visible light or ultraviolet ray emitting system, the resistance changes, so that the frequency of the RC oscillating circuit changes, the counting circuit counts pulse signals output by the oscillating circuit in unit time, the counting value changes greatly to 1 (or 0), and the counting value changes little to 0 (or 1).

The infrared, visible, or ultraviolet emitting system encodes according to binary information to be transmitted, and emits infrared, visible, or ultraviolet rays at a high level (or low level) and does not emit infrared, visible, or ultraviolet rays at a low level (or high level). The binary information of a fixed bit number is transmitted at a time.

When the timing time (generating unit time) of a singlechip of a receiving circuit of an infrared ray, visible light or ultraviolet ray receiving system is not up, the singlechip works in a low power consumption mode, and a counter works.

And when the single chip microcomputer reaches the timing time, exiting the low power consumption mode, resetting the initial value of the timer, reading the value of the counter and storing the value of the counter in the B state, and then resetting the value of the counter.

And B is compared with the previous count value, if the difference value is smaller than the set value, the transmitting circuit of the transmitting system does not transmit signals in the unit time, the event A is recorded as 0, and then the low power consumption mode is entered to wait for the next timing time.

And B is compared with the previous count value, if the difference value is larger than the set value, the transmitting circuit of the transmitting system is judged to transmit signals in the unit time, an event A is recorded to be 1 (representing that the optical communication transmitting circuit transmits the optical signals), meanwhile, the previous count value is recorded to be C, then the low power consumption mode is entered, and the next timing time is waited to arrive.

And when the single chip microcomputer reaches the timing time, exiting the low power consumption mode, resetting the initial value of the timer, reading the value of the counter and storing the value of the counter in the B state, and then resetting the value of the counter.

If A is 1 (representing that the optical communication transmitting circuit is transmitting an optical signal), B is compared with C, if the difference value between B and C is large, one-bit binary information 1 (or 0) is saved, if the difference value between B and C is small, one-bit binary information 0 (or 1) is saved, then the low power consumption mode is entered, and the next timing time is waited for.

And after the receiving circuit of the infrared ray, visible light or ultraviolet ray receiving system receives the binary code of the fixed digit, enabling A to be equal to 0, sending the received binary code of the fixed digit to a display light-emitting diode for display, and waiting for the transmitting circuit of the infrared ray, visible light or ultraviolet ray transmitting system to send a signal again.

[ Table 1]

Transmitting binary codes	Receiving binary codes	Current consumption of receiving circuit after turning off indicator light
			00000	00000	38μA
00001	00001	40μA
			00010	00010	43μA
11010	11010	46μA
			11111	11111	44μA

The current consumption of the existing infrared receiving head is 0.6 milliampere to 1 milliampere, a single chip microcomputer decoding circuit is needed, the single chip microcomputer consumes current, and the single chip microcomputer cannot work in a low power consumption mode.

In summary, the invention has the following advantages: the current consumed by the receiving circuit of the infrared ray, visible light or ultraviolet ray receiving system is less than 100 microamperes (the current of the display light emitting diode is not included), and the current consumption is greatly reduced compared with the current consumed by the receiving circuit of the existing infrared ray receiving system.

Drawings

FIG. 1 is a block diagram of an embodiment of an infrared, visible, or ultraviolet receiving system.

FIG. 2 is a block diagram of an embodiment of an infrared, visible, or ultraviolet light emitting system.

FIG. 3 is a circuit diagram of an embodiment of an infrared, visible, or ultraviolet emitting system.

Fig. 4 is a circuit diagram of an infrared, visible or ultraviolet receiving system in accordance with embodiment 1.

FIG. 5 is a circuit diagram of an infrared, visible or ultraviolet receiving system in accordance with embodiment 2.

Detailed Description

Embodiments of the present invention are described below with reference to the drawings. It should be noted that throughout the drawings, like reference numerals and characters designate like elements, features and structures. A detailed description of known functions has been omitted for clarity and conciseness.

Fig. 1 is a block diagram of an infrared, visible, or ultraviolet receiving system.

After the intensity of light received by the photosensitive sensor is changed, the resistance value R of the photosensitive sensor can be changed, so that the output pulse frequency of the RC oscillating circuit is changed, the output pulse of the RC oscillating circuit is sent to a counter of the single chip microcomputer to be counted, a timer of the single chip microcomputer generates unit time T, and after the time of the timer of the single chip microcomputer is up, the single chip microcomputer exits from a low power consumption mode, and the steps from [0009] to [0014] are executed. The decoding indicator light displays the received information.

FIG. 2 is a block diagram of an infrared, visible, or ultraviolet light emitting system.

After the additional switch is pressed down once, the single chip microcomputer adds one to the content of the storage unit X and sends the content of the X to the coding indicator lamp to be displayed.

After the emission switch is pressed once, the content of X is sequentially transmitted out by the light emitting diode (or one of the infrared emission tube and the ultraviolet diode) according to binary bits, and the time for transmitting each bit is equal to the unit time T.

FIG. 3 is a circuit diagram of an embodiment of an infrared, visible, or ultraviolet emitting system.

S301 is a battery (3V or 3.7V voltage). S302 is a quartz crystal of 32768 Hz. S303 and S304 are key switches, S303 is an add switch, and S304 is a send switch. S305 is an integrated circuit, which is a PIC16F690 single chip microcomputer of American micro-chip technology corporation (MICROCHIP). S306 is a resistor with the resistance value of 300 omega. S307 is a phi 10 white light emitting diode (or one of a phi 5 infrared emission tube and an ultraviolet diode UVTOP355T018 FW). S308 is a manual switch, and when the switch is closed, the content of X can be observed; when the switch is disconnected, the power consumption can be reduced, and the service life of the battery of the transmitting system is prolonged. S309, S311, S313, S315, S317 are red light emitting diodes of phi 3. S310, S312, S314, S316, and S318 are resistors, and the resistance is 1K Ω. When S308 is closed, S309, S311, S313, S315, and S317 display the content of X.

Fig. 4 is a circuit diagram of an infrared, visible or ultraviolet receiving system in accordance with embodiment 1.

S401 is a battery (3V or 3.7V voltage). S402 is a 10nF capacitance. S403 is an integrated circuit, model 7555, timer chip. S404 and S405 are photosensitive sensors, which can be infrared receiving diodes at the same time, and can also be 2CU1A silicon photosensitive diodes at the same time. S406 is a 300pF capacitor. S402, S403, S404, S405 and S406 together form an RC oscillating circuit. S407 is a 32768Hz quartz crystal. S408 is an integrated circuit, model number PIC18F24K40, and is a singlechip of American micro-chip technology corporation (MICROCHIP). S409 is a purple LED with phi 3, and the system is indicated to run normally by flashing. S410, S412, S414, S416, S418 are red light emitting diodes of phi 3. S411, S413, S415, S417, S419, and S420 are resistors, and the resistance is 1K Ω. S421 is a manual switch, and when the switch is turned off, S410, S412, S414, S416, and S418 display the received 5-bit binary code, and if the content is the same as that displayed in S309, S311, S313, S315, and S317, it indicates that the infrared, visible, or ultraviolet receiving system has received the information transmitted from the infrared, visible, or ultraviolet emitting system, and when the switch is turned off, it can measure the current consumed by the infrared, visible, or ultraviolet receiving system.

FIG. 5 is a circuit diagram of an infrared, visible or ultraviolet receiving system in accordance with embodiment 2.

S501 is a battery (3V or 3.7V voltage). S502 is a 10nF capacitor. S503, S504, S505, and S509 are resistors, and the resistance value is 1M Ω. S506 is a 300pF capacitor. S507 and S508 are photosensitive sensors, which can be infrared receiving diodes at the same time, and can also be 2CU1A silicon photosensitive diodes at the same time. S510 is an integrated circuit, model OPA348, which is the integrated operational amplifier of Texas Instruments (TI) in USA. S502, S503, S504, S506, S507, S508, S509, and S510 are purchased together as an RC oscillation circuit. S510 is a quartz crystal of 32768 Hz. And S512 is a manual switch. S513 is an integrated circuit, model MSP430G2553, and is a single chip microcomputer of a Texas Instrument (TI) in America. S514 is a purple diode with phi 3, and the system is indicated to operate normally by flashing. S515, S517, S519, S521, S523 are red diodes of phi 3. S516, S518, S520, S522, S524, and S525 are resistors, and the resistance value is 1K Ω. When S512 is closed, S516, S518, S520, S522, and S524 display the received 5-bit binary code, and if the same content as that displayed in S309, S311, S313, S315, and S317, it indicates that the infrared, visible, or ultraviolet receiving system receives information transmitted from the infrared, visible, or ultraviolet emitting system, and when the switch is opened, it can measure the current consumed by the infrared, visible, or ultraviolet receiving system.

While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.