CN111654517A

CN111654517A - Data interaction circuit supporting remote communication and local area network communication

Info

Publication number: CN111654517A
Application number: CN202010291432.8A
Authority: CN
Inventors: 潘新良; 杨思阳; 陈庆; 欧东; 潘胜举; 田新宇; 潘杰夫; 刘杰; 张春燕
Original assignee: Qiandongnan Vocational & Technical College For Nationalities; Kaili Yun Han Intelligent City Operation Management Co ltd
Current assignee: Qiandongnan Vocational & Technical College For Nationalities; Kaili Yun Han Intelligent City Operation Management Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-09-11

Abstract

The invention is suitable for the technical field of remote control, and provides a data interaction circuit supporting remote communication and local area network communication, which comprises: power supply circuit, first wireless local area network circuit, second wireless local area network circuit, data processing circuit, remote communication circuit and sensor circuit, power supply circuit, first wireless local area network circuit, second wireless local area network circuit, remote communication circuit and sensor circuit equally divide do not with data processing circuit connects, power supply circuit equally divide do not to supply power with first wireless local area network circuit, second wireless local area network circuit, data processing circuit, remote communication circuit and sensor circuit connection. The invention can reduce the cost and realize more intelligent control of the whole circuit.

Description

Data interaction circuit supporting remote communication and local area network communication

Technical Field

The invention belongs to the technical field of remote control, and particularly relates to a data interaction circuit supporting remote communication and local area network communication.

Background

Wisdom cities are the latest concept for future city development and have been primarily practiced. With the development of more intelligence in cities, intelligent lighting in cities has also become more important. When the intelligent lighting is used more widely, the intelligent lighting is expanded to suburbs at the edge of a city, corresponding local area networks are configured for the intelligent lighting in the suburbs, and if the overall control of background servers of suburbs and urban intelligent lighting systems is to be realized, the wiring is complex, the quantity of the background servers is large, and the cost is not easy to control. And the development of intelligent illumination is not easily promoted by a large amount of wiring. Therefore, in the prior art, the problems of high cost and low intelligence in the aspect of the overall layout of intelligent illumination exist.

Disclosure of Invention

The invention provides a data interaction circuit supporting remote communication and local area network communication, and aims to solve the problems of high cost and low intelligence in the aspect of overall layout of intelligent illumination.

The invention provides a data interaction circuit supporting remote communication and local area network communication, which comprises:

power supply circuit, first wireless local area network circuit, second wireless local area network circuit, data processing circuit, remote communication circuit and sensor circuit, power supply circuit, first wireless local area network circuit, second wireless local area network circuit, remote communication circuit and sensor circuit equally divide do not with data processing circuit connects, power supply circuit equally divide do not to supply power with first wireless local area network circuit, second wireless local area network circuit, data processing circuit, remote communication circuit and sensor circuit connection.

The first wireless local area network circuit comprises a first local area network chip U4 and a state detection circuit, one end of the state detection circuit is connected with the first local area network chip U4, the other end of the state detection circuit is connected with the power supply circuit, and the first local area network chip U4 is further connected with the data processing circuit.

The second wireless local area network circuit comprises a second local area network chip U9 and a switch control circuit, one end of the switch control circuit is connected with the second local area network chip U9, the other end of the switch control circuit is connected with the power supply circuit, and the second local area network chip U9 is also connected with the data processing circuit.

Furthermore, the power circuit comprises a voltage conversion circuit, a protection circuit connected with the voltage conversion circuit, and a voltage sampling circuit connected with the voltage conversion circuit.

Furthermore, the voltage conversion circuit comprises a thermistor NTC1, a rectifier bridge U1, a common mode choke TU1, an inductor L1, a filter capacitor C1, a filter capacitor C1, a filter capacitor C14, a filter capacitor C15, a power supply chip U2, a transformer T1, a rectifier diode D1, a voltage stabilizing chip U5 and a voltage stabilizing chip U6.

Wherein, rectifier bridge U1's input and commercial power are connected, thermistor NTC1 is connected between rectifier bridge U1's input and the commercial power, rectifier bridge U1 common mode choke TU1 and filter capacitor C1 connects gradually, power chip U2 with transformer T1 simultaneously with inductance L1's output is connected, rectifier diode D1 one end with transformer T1's output is connected, the other end with inductance L1 voltage stabilizing chip U5 and voltage stabilizing chip U6 connects gradually, filter capacitor C14 with filter capacitor C15 connects after connecting in parallel at voltage stabilizing chip U5's both ends.

Furthermore, the protection circuit includes a resistor R6, a diode D3, and a capacitor C5, wherein after the resistor R6, the diode D3, and the capacitor C5 are connected in series, one end of the resistor R6 is connected to the common mode choke TU1, the filter capacitor C1, and the transformer T1, and the other end of the resistor R6, the diode D3, and the capacitor C5 are connected to the power chip U2.

Furthermore, the voltage sampling circuit comprises a resistor R16, a voltage regulator chip Q2, an optocoupler U3 and a safety capacitor CY 1.

The resistor R16, the voltage stabilizer chip Q2 and the optocoupler U3 are connected in parallel, one end of the resistor R16 is further connected to the inductor L1, one end of the voltage stabilizer chip Q2 is connected with the safety regulation capacitor CY1, the other end of the voltage stabilizer chip Q2 is connected with the first input end of the optocoupler U3, the safety regulation capacitor CY1 is connected between the voltage stabilizer chip Q2 and the first output end of the optocoupler U3, the second input end of the optocoupler U3 is connected with the rectifier diode D1, and the second output end of the optocoupler U3 is connected to the output end of the transformer T1.

Furthermore, the status detection circuit includes a resistor R21, a resistor R22, a light emitting diode D12, and a light emitting diode D13.

One end of the light emitting diode D12 is connected to a thirteen pin of the first lan chip U4, the other end of the light emitting diode D12 is connected to the output end of the voltage regulator chip U6 after being connected in series with the resistor R21, one end of the light emitting diode D13 is connected to a twelve pin of the first lan chip U4, the other end of the light emitting diode D13 is connected to the output end of the voltage regulator chip U6 after being connected in series with the resistor R22, and a signal input end and a signal output end of the lan chip U4 are connected to the data processing circuit.

Furthermore, the signal input terminal and the signal output terminal of the second lan chip U9 are connected to the data processing circuit, and one end of the switch control circuit is connected to the signal input terminal of the second lan chip U9, and the other end is connected to the output terminal of the regulator chip U6.

Furthermore, the remote communication circuit comprises a remote communication module U8 and a first reset circuit, the first reset circuit is connected with a reset pin on the remote communication module U8, and a signal input end and a signal output end of the remote communication module U8 are connected with the data processing circuit.

The reset circuit comprises a detection resistor R40 and a key switch S2, wherein one end of the detection resistor R40 is grounded, and the other end of the detection resistor R40 is connected with the key switch S2 in series and then is connected to the reset pin.

Furthermore, the data processing circuit comprises a single chip microcomputer U7, a first oscillation starting circuit, a second reset circuit and a rectifying and filtering circuit, and the first oscillation starting circuit, the second reset circuit and the rectifying and filtering circuit are all connected with the single chip microcomputer U7.

The serial port 1 of the single chip microcomputer U7 is connected with the signal input end and the signal output end of the local area network chip U4, the serial port 3 of the single chip microcomputer U7 is connected with the signal input end and the signal output end of the second local area network chip U9, and the serial port 2 of the single chip microcomputer U7 is connected with the signal input end and the signal output end of the remote communication module U8.

Furthermore, the sensor circuit comprises a temperature and humidity detection circuit, an air quality detection circuit and a photosensitive detection circuit, and the temperature and humidity detection circuit, the air quality detection circuit and the photosensitive detection circuit are all connected with the data processing circuit and the power circuit.

The invention achieves the following beneficial effects: the remote control circuit is arranged to receive remote control signals and transmit the remote control signals to the data processing circuit for data processing, the sensor circuit connected with the data processing circuit can acquire a plurality of state data of the data processing circuit and feed the state data back to the data processing circuit, the data processing circuit performs data processing to form a control instruction, the remote communication circuit is connected with the first wireless local area network circuit and the second wireless local area network circuit and distributes the control instruction to the control execution end carrying the first wireless local area network circuit and the second wireless local area network circuit to execute the control instruction, and therefore remote control and intelligent control are achieved. Since the cost of the remote communication circuit is far higher than that of the ad hoc network by carrying out the ad hoc network (the first wireless local area network and the second wireless local area network) at the control execution end, the problem of high cost caused by the fact that a plurality of remote communication circuits are respectively connected with the control execution end is solved, the use time of each remote communication circuit is short, but the ad hoc network can be used for a long time; and the ad hoc network is connected with the remote communication circuit to realize the transmission of control instructions, so that the linkage of the whole circuit can be realized, and the whole data interaction circuit can realize more intelligent control.

Drawings

Fig. 1 is a schematic structural diagram of a data interaction circuit supporting remote communication and local area network communication according to an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of a first wireless lan circuit according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram of a second wlan circuit according to an embodiment of the present invention;

fig. 4a is a schematic circuit diagram of a power circuit according to an embodiment of the present invention;

FIG. 4b is a schematic diagram of another power circuit according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a circuit configuration of a telecommunication circuit according to an embodiment of the present invention;

FIG. 6a is a schematic diagram of a specific circuit structure of a data processing circuit according to an embodiment of the present invention;

fig. 6b is a schematic circuit diagram of a first resonant circuit according to an embodiment of the present invention;

fig. 6c is a schematic circuit diagram of a second oscillation starting circuit according to an embodiment of the present invention;

fig. 6d is a schematic circuit diagram of a second reset circuit according to an embodiment of the present invention;

fig. 6e is a schematic circuit structure diagram of a rectifying and filtering circuit according to an embodiment of the present invention;

FIG. 6f is a schematic diagram of a connector connected to a data processing circuit according to an embodiment of the present invention;

fig. 7a is a schematic circuit structure diagram of a temperature and humidity detection circuit according to an embodiment of the present invention;

FIG. 7b is a schematic diagram of a circuit configuration of an air quality detection circuit according to an embodiment of the present invention;

FIG. 7c is a schematic circuit diagram of a photosensitive detection circuit according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another data interaction circuit supporting remote communication and local area network communication according to an embodiment of the present invention.

The system comprises a power circuit 1, a first wireless local area network circuit 2, a second wireless local area network circuit 3, a data processing circuit 4, a remote communication circuit 5, a sensor circuit 6 and a power supply circuit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The remote control circuit is arranged to receive remote control signals and transmit the remote control signals to the data processing circuit for data processing, the sensor circuit connected with the data processing circuit can acquire a plurality of state data of the data processing circuit and feed the state data back to the data processing circuit, the data processing circuit performs data processing to form a control instruction, the remote communication circuit is connected with the first wireless local area network circuit and the second wireless local area network circuit and distributes the control instruction to the control execution end carrying the first wireless local area network circuit and the second wireless local area network circuit to execute the control instruction, and therefore remote control and intelligent control are achieved. Since the cost of the remote communication circuit is far higher than that of the ad hoc network by carrying out the ad hoc network (the first wireless local area network and the second wireless local area network) at the control execution end, the problem of high cost caused by the fact that a plurality of remote communication circuits are respectively connected with the control execution end is solved, the use time of each remote communication circuit is short, but the ad hoc network can be used for a long time; and the ad hoc network is connected with the remote communication circuit to realize the transmission of control instructions, so that the linkage of the whole circuit can be realized, and the whole data interaction circuit can realize more intelligent control.

Example one

Fig. 1 is a schematic structural diagram of a data interaction circuit supporting remote communication and local area network communication according to an embodiment of the present invention. A data interaction circuit supporting telecommunications and local area network communications, comprising: the wireless sensor network comprises a power supply circuit 1, a first wireless local area network circuit 2, a second wireless local area network circuit 3, a data processing circuit 4, a remote communication circuit 5 and a sensor circuit 6, wherein the power supply circuit 1, the first wireless local area network circuit 2, the second wireless local area network circuit 3, the remote communication circuit 5 and the sensor circuit 6 are respectively connected with the data processing circuit 4, and the power supply circuit 1 is respectively connected with the first wireless local area network circuit 2, the second wireless local area network circuit 3, the data processing circuit 4, the remote communication circuit 5 and the sensor circuit 6 for supplying power.

The power circuit 1 may supply power to the first wireless lan circuit 2, the second wireless lan circuit 3, the data processing circuit 4, the remote communication circuit 5, and the sensor circuit 6.

The first wireless lan circuit 2 and the second wireless lan circuit 3 can implement data transmission between the client and the control execution end.

The data processing circuit 4 can perform data processing on the received remote data and the working environment data acquired by the sensor.

The remote communication circuit 5 can send the remote data transmitted by the client through the internet to the data processing circuit 4 for data processing to form a control instruction, and send the control instruction to the control execution end carrying the first lan circuit and the second lan circuit.

Sensor circuit 6 can carry out environmental detection to whole circuit to obtain current operational environment data in real time, this operational environment data can include humiture data, air quality data and photosensitive data.

Further, referring to fig. 2, the first wireless lan circuit 2 includes a first lan chip U4 and a status detection circuit, one end of the status detection circuit is connected to the first lan chip U4, the other end is connected to the power circuit 1, and the first lan chip U4 is further connected to the data processing circuit 4.

The first LAN chip U4 may be ZIGBEE chip with model number of E18-MS1PA1-IPX, E18-2G4Z27SI or E18-MS 1-IPX. The first local area network chip U4 can implement network communication within a certain preset distance, and simultaneously, is connected with the remote communication module to implement data transmission. The first local area network chip U4 is also connected to the data processing circuit 4 via a signal input terminal USART1-TX (pin eleven) and a signal input terminal USART1-RX (pin ten), so as to realize signal communication between the two. In the embodiment of the present invention, the transmission frequency of the first lan chip U4 may be 2.4G.

The state detection circuit is connected with the thirteen pins and the fourteen pins of the first local area network chip U4, and the other end of the state detection circuit is connected with the power supply circuit 1, so that whether the working state of the first local area network chip U4 is normal or not can be monitored in real time.

Further, referring to fig. 3, the second wireless lan circuit 3 includes a second lan chip U9 and a switch control circuit, one end of the switch control circuit is connected to the second lan chip U9, the other end is connected to the power circuit 1, and the second lan chip U9 is further connected to the data processing circuit 4.

The second lan chip U9 may be a lora (long range) chip with the types SX1276, SX1277, SX1278, SX1279, SX 1301. The cost of the LoRa chip is lower than that of the partial 4G chip, the 4G card belongs to continuous consumption, and the LoRa chip belongs to one-time release. The second local area network chip U9 can implement network communication within a certain preset distance, and is connected with the remote communication module to implement data transmission. In the present invention, the transmission frequency of the second lan chip U9 may be 433M. The second lan chip U9 is also connected to the data processing circuit 4 via signal inputs USART3-TX (pin two) and USART3-RX (pin three) to enable signal communication therebetween.

The switch control circuit can control the working state of the second lan chip U9, the switch control circuit is connected to the power circuit 1 when the second lan chip U9 is in the working mode, and the switch control circuit is grounded when the second lan chip U9 is in the configuration mode.

Specifically, the client transmits the information to the data processing circuit 4 through the internet under the action of the remote communication circuit 5, the data processing circuit 4 processes the remote data, receives the currently acquired working environment data of the sensor circuit 6 for processing, generates a control instruction according to a processing result, transmits the control instruction to the control execution end carrying the first wireless local area network circuit 2 and the second wireless local area network circuit 3 through the remote communication circuit 5 to execute the control instruction, and therefore remote and intelligent control is achieved.

The first lan chip U4 and the second lan chip U9 implement functions similar to each other, but are different in parameters such as transmission distance and transmission frequency. And in the layout of the whole data interaction circuit, besides the first local area network circuit and the second local area network circuit, more local area network circuits can be configured to realize network communication of different regions. Also, the sensor circuit 6, the remote communication module, and the like can be provided in plural, and the specific number can be determined according to specific situations.

In the embodiment of the invention, the remote communication circuit 5 is arranged to receive a remote control signal and transmit the remote control signal to the data processing circuit 4 for data processing, the sensor circuit 6 connected with the data processing circuit 4 can acquire a plurality of state data of the data processing circuit 4 and feed the state data back to the data processing circuit 4, the data processing circuit 4 performs data processing to form a control instruction, the remote communication circuit 5 is connected with the first wireless local area network circuit 2 and the second wireless local area network circuit 3 and distributes the control instruction to the control execution end carrying the first wireless local area network circuit 2 and the second wireless local area network circuit 3 to execute the control instruction, so that remote control and intelligent control are realized. Since the cost of the remote communication circuit 5 is much higher than that of the ad hoc network by performing the ad hoc network (the first wireless lan and the second wireless lan) at the control execution end, the problem of high cost caused by connecting a plurality of remote communication circuits 5 with the control execution end respectively is avoided, and the use time of each remote communication circuit 5 is short, but the ad hoc network can be used for a long time; and the ad hoc network is connected with the remote communication circuit 5 to realize the transmission of control instructions, so that the linkage of the whole circuit can be realized, and the whole data interaction circuit can realize more intelligent control.

Example two

Fig. 4a to 4b are schematic diagrams showing a specific structure of the power circuit 1 according to the embodiment of the present invention. In the first embodiment, the power supply circuit 1 includes a voltage conversion circuit, a protection circuit connected to the voltage conversion circuit, and a voltage sampling circuit connected to the voltage conversion circuit.

Wherein, voltage conversion circuit includes: thermistor NTC1, rectifier bridge U1, common mode choke TU1, inductance L1, filter capacitor C1, filter capacitor C1, filter capacitor C14, filter capacitor C15, power chip U2, transformer T1, rectifier diode D1, voltage stabilizing chip U5 and voltage stabilizing chip U6.

Specifically, two input ends (AC ends) of the rectifier bridge U1 are connected to the mains supply, and the thermistor NTC1 is connected between one input end of the rectifier bridge U1 and the ground line of the mains supply, and is mainly used for measuring the temperature in the circuit and playing a role in protection. The output end (v + and v-) of the rectifier bridge U1, the common mode choke coil TU1 and the filter capacitor C1 are connected in parallel, and the power supply chip U2 (model may be 63513/63a27) and the transformer T1 are connected to the output end of the inductor L1. The positive terminal of the rectifying diode D1 is connected with the output terminal of the transformer T1, and the negative terminal of the rectifying diode D1 is connected with the inductor L1, the voltage stabilizing chip U5 and the voltage stabilizing chip U6 in sequence. The filter capacitor C14 and the filter capacitor C15 are connected in parallel and then connected to two ends of the voltage stabilizing chip U5.

More specifically, the 220V ac power of the external utility power may be converted into a dc power through the rectifier bridge U1, and then filtered by the L1 and the C1 to obtain a 50Hz voltage signal, and then combined with the high frequency 60KHz oscillating signal generated by the power chip U2, and converted into a 12V ac voltage signal through the transformer T1. Then, the voltage is rectified for the second time through the diode D1 to obtain 12V dc voltage, and then filtered through the filter capacitor C14 and the filter capacitor C15 to output 12V stable voltage. After the stable voltage of 12V is obtained, the stable voltage can be converted into a 5V stabilized voltage power supply through the stabilized voltage chip U5, then the 5V stabilized voltage power supply is transmitted to the stabilized voltage chip U6 to be subjected to voltage conversion, and a 3.3V stabilized power supply can be obtained, so that the conversion from 220V mains supply to the 3.3V stabilized power supply is realized, and the power is conveniently supplied to other circuits. In addition, the input end and the output end of the voltage stabilization chip U5 are respectively connected with a fuse FU1 and a fuse FU2, so that overcurrent protection can be realized.

Further, as shown in fig. 4a, the protection circuit includes a resistor R6, a diode D3, and a capacitor C5, wherein the resistor R6, the diode D3, and the capacitor C5 are connected in series, and then one end of the series is connected to the common-mode choke TU1, the filter capacitor C1, and the transformer T1, and the other end of the series is connected to the power chip U2.

Specifically, after the resistor R6, the diode D3 and the capacitor C5 are connected in parallel, a diode D2 may be connected in series in reverse at the positive terminal of the diode D3 to be connected to the output terminal of the common mode choke TU1, and the output terminal of the common mode choke TU1 is connected to an input terminal of the transformer T1 at the same time, so as to form a protection circuit for preventing reverse direction. The negative end of the diode D3 is connected with the other input end of the transformer T1, and simultaneously can be connected to the power supply chip U2 through a field effect transistor Q1, so that the mains supply can be combined with the high-frequency oscillation signal of the voltage stabilizing chip U2 after being filtered.

Further, with continued reference to fig. 4a, the voltage sampling circuit includes a resistor R16, a regulator chip Q2, an optocoupler U3, and a safety capacitor CY 1.

The resistor R16, the voltage stabilizer chip Q2 and the optocoupler U3 are connected in parallel, and one end of the resistor R16 is further connected to the inductor L1. The input of stabiliser chip Q2 is connected with ann rule electric capacity CY1, and stabiliser chip Q2 output is connected with opto-coupler U3's first input, and ann rule electric capacity CY1 connects between stabiliser chip Q2 and opto-coupler U3's first output. A second input end of the optocoupler U3 is connected with the negative end of the rectifier diode D1, and a second output end of the optocoupler U3 is connected with the output end of the transformer T1. The optocoupler U3 is used for feedback control voltage output and has a signal isolation function; the safety capacitor CY1 can isolate a 12V direct current power supply from a 220V alternating current power supply; the resistor R16 shunt regulator chip Q2 can be a voltage sampling circuit, and can output 12V voltage through a certain proportion.

A diode D4, a resistor R13 and a capacitor C8 are further connected in series between the second output end of the optocoupler U3 and the output end of the transformer T1, unidirectional conduction can be guaranteed, the capacitor C8 isolates direct alternating current, interference signals in alternating current signals can be denoised through the resistor R13, and a large signal-to-noise ratio is provided for subsequent circuits. A resistor R9 and a resistor R10 are also connected in series between the output end of the voltage regulator chip Q2 and the negative electrode end of the rectifier diode D1 for current limiting. A resistor R26 is connected in parallel with the resistor R16, one end of the resistor R16 is connected to one end of the resistor R10 through a parallel resistor R12 and a capacitor C6, the other end is grounded to eliminate an interference signal, and a resistor R8 is connected in series between the resistor R16 and the inductor L1 to limit current.

In the embodiment of the invention, the voltage conversion circuit converts commercial power into 3.3V of stable power voltage which can be used by the whole circuit, the protection circuit can form a reverse protection circuit in the voltage conversion process so as to protect the normal work of a power supply, and the voltage sampling circuit can also rectify 12V voltage output by the diode to output stable voltage. Thus, the whole power circuit 1 can provide stable and safe power for other circuits.

EXAMPLE III

Referring to fig. 2, in the first embodiment, the state detection circuit includes a resistor R21, a resistor R22, a light emitting diode D12 and a light emitting diode D13.

The negative terminal of the light emitting diode D12 is connected to pin thirteen of the first local area network chip U4, and the positive terminal is connected in series with the resistor R21 and then connected to the output terminal of the voltage regulator chip U6. The negative terminal of the light emitting diode D13 is connected to the twelve pins of the first lan chip U4, and the positive terminal is connected in series with the resistor R22 and then connected to the output terminal of the regulator chip U6. The signal input terminal USART1-TX (pin eleven) and the signal input terminal USART1-RX (pin ten) of the first lan chip U4 are connected to one-hundred-zero-one and one-hundred-zero-two pins of the chip U7 in the data processing circuit 4, respectively, and control instructions for automatic operation of the chip U7 can be sent to the first wireless lan U4, which also carries the same or similar modules of the data processing circuit 4.

Specifically, the led D12 and the led D13 may be used as an operation status indicator light and a network status indicator light of the first lan chip U4, respectively, for example: when the first local area network chip U4 is in an operating state, the light emitting diode D13 may be turned on, and when the first local area network chip U4 is in an inactive state, the light emitting diode D13 may be turned off; when the first local area network chip U4 has a network, the light emitting diode D12 lights up, and when no network exists, the light emitting diode D12 lights off. As a possible embodiment, a connector JP2 can be connected to the first local area network circuit, pin one of the connector JP2 is connected to 3.3V, pin two of the connector JP2 is connected to pin two of the first local area network chip U4, and a capacitor C9 and a capacitor C10 can be connected in parallel between pin two of the first local area network chip U4 and pin two of the connector JP2, and then connected to pin 7 of the first local area network chip U4 while being grounded.

Further, referring to fig. 3, the signal input terminal and the signal output terminal of the second lan chip U9 are connected to the data processing circuit 4, and one end of the switch control circuit is connected to the signal input terminal of the second lan chip U9, and the other end is connected to the output terminal of the regulator chip U6.

The signal input terminal USART3-TX (pin two) and the signal output terminal USART3-TX (pin three) of the second lan chip U9 may be respectively connected to pin sixty-nine and pin seventy of the chip U7 in the data processing circuit 4. Control commands for automatic operation of the singlechip U7 may be sent to the second wireless lan U9 for operation with modules carrying the same or similar data processing circuitry 4. A fixed contact of a switch S3 in the switch control circuit is connected with a signal input end USART3-TX of a second local area network chip U9, one end of a moving contact is connected to the 3.3V voltage of a voltage stabilizing chip U6, and the other end of the moving contact is grounded. The second LAN chip U9 is in working state when the switch S3 is turned on for 3.3V, and the second LAN chip U9 is in configuration state when the switch S3 is turned on for grounding.

Furthermore, as shown in fig. 5, the remote communication circuit 5 includes a remote communication module U8 and a first reset circuit, the first reset circuit is connected to a reset pin of the remote communication module U8, and a signal input terminal and a signal output terminal of the remote communication module U8 are connected to the data processing circuit 4.

The model of the remote communication module U8 may be E840-TTL-4G02 or E840-TTL-4G01, the current signal is a 4G signal, and corresponds to a 4G module, but is not limited to a 3G or 5G communication module. The signal input end USART2-TX and the signal output end USART2-TX of the remote communication module U8 are respectively connected with thirty-six pins and thirty-seven pins of a singlechip U7 in the data processing circuit 4, the remote communication circuit 5 plays a role of 'uploading and issuing' in the whole data interaction circuit, data, instructions and the like of a client can be issued to the first wireless local area network circuit 2 and the second wireless local area network circuit 3 through the connection of the signal input end and the signal output end of the remote communication module U8 with thirty-six pins and thirty-seventeen pins of a singlechip U7 in the data processing circuit 4, a plurality of data collected by the sensor circuit 6 are transmitted to a background, and the background can perform analysis and visualization processing.

The first reset circuit includes: the detection resistor R40 and the key switch S2, the detection resistor R40 has one end connected to the ground, and the other end connected to the reset pin (RST pin) after being connected in series with the key switch S2. The first reset circuit may restore the circuit to an initial state. Resetting operation is carried out immediately when the circuit is powered on; the operation can be manual, or can be automatic according to the operation requirement of a program or a circuit. As a possible embodiment, a capacitor may be connected in parallel to both ends of the switch S2, the resistor R40 may control the reset time, and if the capacitor is added to the reset circuit, the capacitor may function when the power is on, and the current flows through the capacitor at the charging moment, so that the RST pin gets high level, and the RST end turns low level after the charging is finished.

In addition, as shown in fig. 5, an external interface a2 may be connected to the signal input terminal USART2-TX and the signal output terminal USART2-TX of the remote communication module U8, the signal input terminal USART2-TX is connected to pin five (D-) of the external interface a2, and the signal output terminal USART2-TX is connected to pin four (D +) of the external interface a 2. Remote communication may also be enabled if external interface a2 has other devices connected to it. A connector JP14 may also be connected at pin sixteen (VCC) terminal of telecommunications module U8, with pin seventeen being connected to ground.

Furthermore, as shown in fig. 6a, the data processing circuit 4 includes a single chip microcomputer U7, a first oscillation circuit, a second reset circuit, and a rectifying and filtering circuit, and the first oscillation circuit, the second reset circuit, and the rectifying and filtering circuit are all connected to the single chip microcomputer U7;

The model of the single chip microcomputer U7 can be STM32F103ZET6 or STM32F8ZET 6. The serial port 1 of the singlechip U7 may include one hundred zero one pin and one hundred zero two pin. Serial port 2 of the single chip microcomputer U7 may include thirty-six pins and thirty-seven pins. The serial port 3 of the singlechip U7 may include pins sixty-nine and seventy. The signal input terminal USART2-TX and the signal output terminal USART2-TX of the remote communication module U8 are connected to thirty-six and thirty-seven pins of the chip microcomputer U7 in the data processing circuit 4, respectively. The signal input terminal USART1-TX (pin eleven) and the signal input terminal USART1-RX (pin ten) of the first local area network chip U4 are connected to pin one-hundred-zero-one and pin one-hundred-zero-two of the chip U7 in the data processing circuit 4, respectively. The signal input terminal USART3-TX (pin two) and the signal output terminal USART3-TX (pin three) of the second lan chip U9 may be respectively connected to pin sixty and pin seventy of the chip U7 in the data processing circuit 4. And a six pin of the singlechip U7 is also connected with a lithium battery TB1, the size of the lithium battery TB1 is 3V, and the model of the lithium battery TB 35 621FE can be MS 621. Lithium cell TB1 can charge singlechip U7, lets the RTC clock operation.

As shown in fig. 6b, the first resonant circuit includes: the circuit comprises a resistor R31, a resistor R32, a capacitor C24, a capacitor C25 and a crystal oscillator X2. And the resistor R31 is connected with the capacitor C24 in series, one end of the resistor R is grounded, and the other end of the resistor R is connected with the eight pin of the singlechip U7. The resistor R32 is connected with the capacitor C25 in series, and then one end of the resistor R32 is grounded, and the other end of the resistor R is connected with a pin nine of the singlechip U7. The crystal oscillator X2 has one end connected between the resistor R31 and the capacitor C24 and the other end connected between the resistor R32 and the capacitor C25. The size of each component can be 0 omega for the resistor R31 and the resistor R32, 10pF for the capacitor C24 and the capacitor C25, and 32.758Hz for the frequency of the crystal oscillator X2. The first oscillating circuit can provide working pulse signals for the single chip microcomputer U7.

As shown in fig. 6c, the second oscillation starting circuit includes: the circuit comprises a resistor R33, a crystal oscillator X1, a capacitor C22 and a capacitor C23. The capacitor C22 is connected to twenty-three (OSC-IN) pin of the singlechip U7, and is output from the OSC-OUT pin and then connected to the capacitor C23, and then grounded. The resistor R33 and the crystal oscillator X1 are uniformly connected between the capacitor C22 and twenty-three pins of the singlechip U7, and the other ends of the resistor R33 and the crystal oscillator X1 are connected between the capacitor C23 and twenty-four pins of the singlechip U7. The size of each component can be 1 MOmega for the resistor R33, 11.0592Hz for the crystal oscillator X1, and 20pF for the capacitor C22 and the capacitor C23. The first oscillating circuit can also provide working pulse signals for the singlechip U7.

As shown in fig. 6d, the second reset circuit includes: magnetic bead L2, resistance R34, resistance R35, key switch S1, electric capacity C26, electric capacity C27. The key switch S1 may be a multi-interface, such as: and the four interfaces can be connected according to specific conditions. The first end of the key switch S1 is connected with twenty-five (NRST) pin of the singlechip U7, and the second end is grounded. The capacitor C27 is connected in parallel with the key switch S1, and the first end of the key switch S1 is connected with a resistor R34 and then connected to a pin one hundred forty four (VDD) of the singlechip U7. After the magnetic bead L2 is connected with the resistor R35 in series, one end of the magnetic bead L2 is connected to thirty-two pins of the single chip microcomputer U7, and the other end of the magnetic bead L2 is connected to one hundred forty-four (VDD) pins of the single chip microcomputer U7. One end of the capacitor C26 is grounded, and the other end is connected between the magnetic bead L2 and the resistor R35. The sizes of the above elements may be 0 Ω for magnetic bead L2, 10 Ω for resistor R34, 10 Ω for resistor R35, 10uF for key switch S1, 10uF for capacitor C26, and 100nF for capacitor C27. The second reset circuit may restore the circuit to an initial state and immediately perform a reset operation when the circuit is powered on.

As shown in fig. 6e, the rectifying and filtering circuit includes: the capacitor C29, the capacitor C30, the capacitor C31, the capacitor C32, the capacitor C33, the capacitor C34, the capacitor C35, the capacitor C36, the capacitor C37 and the capacitor C38. The capacitor C29, the capacitor C30, the capacitor C31, the capacitor C32, the capacitor C33, the capacitor C34, the capacitor C35, the capacitor C36, the capacitor C37 and the capacitor C38 are connected in parallel, one end of the connected capacitor C3580 is connected to a pin one hundred forty four fourteen of the singlechip U7, and the other end of the connected capacitor C38 is grounded. Based on the charge-discharge characteristics of the capacitor, high-frequency filtering can be performed on the data processing circuit 4, and meanwhile, the equivalent impedance of the capacitor can be reduced by connecting a plurality of capacitors in parallel, so that the service life of the capacitor is prolonged. The size of the capacitor C29, the capacitor C30, the capacitor C31, the capacitor C32, the capacitor C33, the capacitor C34, the capacitor C35, the capacitor C36, the capacitor C37 and the capacitor C38 can be 100 nF.

As a possible embodiment, as shown with reference to fig. 6f, a connector JP12 and a connector JP22 may also be accessed in the data processing circuit 4. The connector JP12 and the connector JP22 are both connected to one hundred and forty four pins of the single chip microcomputer U7, the connector JP22 is respectively connected with one hundred and thirty eight pins (BOOT1) and one hundred and thirty eight pins (BOOT0) of the single chip microcomputer U7 through a pin five and a pin two, a resistor R38 can be connected in series between the pin two of the connector JP22 and the pin one hundred and thirty eight pins of the single chip microcomputer U7, and a resistor R39 can be connected in series between the pin five of the connector JP22 and the pin forty eight pins of the single chip microcomputer U7. In this way, the connection can be used as a starting mode for selecting different memories. Of course, in addition to the above-mentioned connector JP12 and connector JP22, more connectors may be accessed, and the embodiment of the present invention is not limited thereto.

Furthermore, the sensor circuit 6 includes a temperature and humidity detection circuit, an air quality detection circuit and a photosensitive detection circuit, and the temperature and humidity detection circuit, the air quality detection circuit and the photosensitive detection circuit are all connected with the data processing circuit 4 and the power circuit 1.

As shown in fig. 7a, the temperature and humidity detection circuit includes: temperature and humidity sensor module JP6, pull-up drive resistance R24, pull-up drive resistance R27. The temperature and humidity sensor module JP6 model may be AHT 15. The temperature and humidity detection circuit can be used for collecting temperature and humidity data of the I/O of the single chip microcomputer U7. The resistance of the pull-up driving resistor R24 and the pull-up driving resistor R27 is 4.7K omega. The temperature and humidity sensor module JP6 may include four rows of pins, and may have a voltage output end of 3.3V with pin one, and pin two connects to pull-up drive resistor R24 and then inserts the pin one hundred thirty-seven of singlechip U7, and pin four connects to pull-up drive resistor R27 and then inserts the pin one hundred thirty-six of singlechip U7, and pin three is ground. In the connection of pin two, pin four and singlechip U7, can select one way as the passageway that carries out data transmission after temperature data is gathered to temperature and humidity sensor module JP6, another way as the transmission passageway of humidity data after humidity data is gathered to temperature and humidity sensor module JP 6. The addition of pull-up driving resistor R24 and pull-up driving resistor R27 can clamp the indeterminate signal at a high level through one resistor and also act as a current limiting function.

As shown in fig. 7b, the air quality detection circuit includes: the air quality sensor JP7, an auxiliary test circuit transistor Q3 with the model number S8050, a resistor R25 and a capacitor C20. The air quality sensor JP7 is model GP2Y1014 AU. The air quality detection circuit can be used for collecting air quality data of the I/O of the single chip microcomputer U7. The resistance R25 is 150 Ω, and the capacitance C20 is 22 uF. The base electrode of the triode Q3 is connected with twenty-eight pins of the singlechip U7, the collector electrode of the triode Q3 is connected with three pins of the air quality sensor JP7, and the emitter electrode of the triode Q3 is simultaneously grounded with four pins and two pins of the air quality sensor JP 7. One end of the capacitor C20 is connected with a pin five of the air quality sensor JP7, the other end of the capacitor C20 is grounded, and the capacitor C20 can filter. One end of the resistor R25 is connected with the capacitor C20, the other end of the resistor R25 and a pin six of the air quality sensor JP7 are simultaneously connected with 5V voltage, and the resistor R25 can limit current. Pin 5 of the air quality sensor JP7 is connected to pin eighteen of the single chip U7. After the air quality sensor JP7 collects air quality data (dust concentration, particulate matter concentration and the like), the air quality data can be conducted through the triode Q3 and uploaded to the single chip microcomputer U7 to be subjected to data processing.

As shown in FIG. 7c, the photosensitive detection circuit comprises a voltage-dividing resistor R28, a voltage-dividing resistor R29, a voltage-dividing resistor R30, a photosensitive resistor RT1, a photosensitive resistor RT2 and a photosensitive resistor RT 3. The photosensitive detection circuit can be used for carrying out photosensitive data acquisition on the working environment of the single chip microcomputer U7. The voltage dividing resistor R28, the voltage dividing resistor R29, and the voltage dividing resistor R30 may all be 1K Ω. The pin nineteen of singlechip U7 is connected between divider resistance R28 and photo resistance RT1, and the pin twenty of singlechip U7 is connected between divider resistance R28 and photo resistance RT2, and the pin twenty one of singlechip U7 is connected between divider resistance R28 and photo resistance RT 3. The voltage dividing resistor R28 is connected with the photosensitive resistor RT1 in series to obtain a first branch circuit, the voltage dividing resistor R29 is connected with the photosensitive resistor RT2 in series to obtain a second branch circuit, and the voltage dividing resistor R30 is connected with the photosensitive resistor RT3 in series to obtain a third branch circuit. After the first branch circuit, the second branch circuit and the third branch circuit are connected in parallel, one end of the first branch circuit, the second branch circuit and the third branch circuit is connected with 5V voltage, and the other end of the first branch circuit, the second branch circuit and the third branch circuit are grounded.

Specifically, the resistances of the photo resistors RT1, RT2, and RT3 may increase with the dimming of ambient light, and the divided voltage rises to achieve the purpose of increasing the voltages at two ends of the lighting system, for example: a light-operated lamp. The photoresistor RT1, the photoresistor RT2 and the photoresistor RT3 can upload voltage changes brought by the photoresistor RT1, the photoresistor RT2 and the photoresistor RT3 through connection with the single-chip microcomputer U7, and then the single-chip microcomputer U7 can form corresponding control instructions according to received data and send the control instructions to a terminal in the first local area network circuit or the second local area network circuit to execute the control instructions. The photoresistors RT1, RT2 and RT3 are designed to avoid the problem that the whole system cannot work normally when a certain photoresistor fails or goes wrong. When the program is designed, corresponding instructions can be sent by comparing two photoresistors to reach a set value, the currently collected data is sent to a background for storage, and if a certain photoresistor has a problem, the problem can be analyzed and processed, and the photoresistor can be replaced or maintained.

More specifically, all data collected by the temperature and humidity detection circuit, the air quality detection circuit and the photosensitive detection circuit can be uploaded to the data processing circuit 4, after the data processing circuit 4 performs data processing, a processing result can be uploaded to a background database for storage, the processed data can be sent to the ad hoc network, and the terminal in the ad hoc network executes corresponding actions through formulated instructions.

In the embodiment of the present invention, the operating state of the first lan chip U4 can be detected in real time through the condition of the light emitting diode D12 and the light emitting diode D13 in the state detection circuit, the remote communication circuit 5 can send the remote control signal sent by the client to the data processing circuit 4 for data processing to form a corresponding control instruction, and send the control instruction to the first lan circuit and the second lan circuit, and the control instruction is distributed to the control execution end carrying the wireless lan module through the first lan circuit and the second lan circuit to execute the control instruction. Meanwhile, the sensor circuit 6 can collect a plurality of working environment data of the data processing circuit 4, send the data to the data processing circuit 4 for processing and upload the data to a background, and send the processed data to an ad hoc network). Therefore, remote data transmission is realized, the working environment can be detected, and timely adjustment according to the change of the environment is facilitated.

It is to be understood that, as shown in fig. 8, the first wireless lan circuit 2 may be provided in plurality (the first wireless lan circuit 20, the first wireless lan circuit 21, the first wireless lan circuit 22, etc.), and the second wireless lan circuit 3 may be provided in plurality (the second wireless lan circuit 10, the second wireless lan circuit 11, the second wireless lan circuit 12, etc.). A plurality of control execution terminals (terminal 1, terminal 2, etc.) may be included in each wireless lan circuit. The client may be installed with various communication client applications, such as a web browser application, a search application, an instant messaging tool, and the like. The client may be a variety of electronic devices having a display screen and supporting web browsing, including but not limited to smart phones, tablet computers, laptop portable computers, desktop computers, and the like. The client may also be referred to as a mobile terminal, a terminal device, a user terminal, or the like.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A data interaction circuit supporting telecommunications and local area network communications, comprising:

the remote communication system comprises a power supply circuit, a first wireless local area network circuit, a second wireless local area network circuit, a data processing circuit, a remote communication circuit and a sensor circuit, wherein the power supply circuit, the first wireless local area network circuit, the second wireless local area network circuit, the remote communication circuit and the sensor circuit are respectively connected with the data processing circuit, and the power supply circuit is respectively connected with the first wireless local area network circuit, the second wireless local area network circuit, the data processing circuit, the remote communication circuit and the sensor circuit for supplying power;

the first wireless local area network circuit comprises a first local area network chip U4 and a state detection circuit, wherein one end of the state detection circuit is connected with the first local area network chip U4, the other end of the state detection circuit is connected with the power supply circuit, and the first local area network chip U4 is also connected with the data processing circuit;

2. The data communication circuit supporting remote communication and local area network communication as recited in claim 1, wherein said power circuit comprises a voltage conversion circuit, a protection circuit connected to said voltage conversion circuit, and a voltage sampling circuit connected to said voltage conversion circuit.

3. The data interaction circuit supporting remote communication and local area network communication of claim 2, wherein the voltage conversion circuit comprises a thermistor NTC1, a rectifier bridge U1, a common mode choke TU1, an inductor L1, a filter capacitor C1, a filter capacitor C1, a filter capacitor C14, a filter capacitor C15, a power chip U2, a transformer T1, a rectifier diode D1, a voltage regulation chip U5 and a voltage regulation chip U6;

4. The data interaction circuit supporting remote communication and local area network communication as claimed in claim 3, wherein said protection circuit comprises a resistor R6, a diode D3 and a capacitor C5, said resistor R6, said diode D3 and said capacitor C5 are connected in series, one end of said resistor R6, said diode D3 and said capacitor C5 is connected with said common mode choke TU1, said filter capacitor C1 and said transformer T1, and the other end of said resistor R6 is connected with said power chip U2.

5. The data interaction circuit supporting remote communication and local area network communication of claim 3, wherein the voltage sampling circuit comprises a resistor R16, a voltage regulator chip Q2, an optocoupler U3 and a safety capacitor CY 1;

6. The data interaction circuit supporting remote communication and local area network communication of claim 3, wherein the state detection circuit comprises a resistor R21 and a resistor R22, a light emitting diode D12 and a light emitting diode D13;

7. The data interaction circuit supporting remote communication and local area network communication of claim 3, wherein the signal input terminal and the signal output terminal of the second LAN chip U9 are connected to the data processing circuit, and one end of the switch control circuit is connected to the signal input terminal of the second LAN chip U9, and the other end is connected to the output terminal of the voltage regulator chip U6.

8. A data interaction circuit supporting telecommunication and lan communication according to claim 1, characterized in that the telecommunication circuit comprises a telecommunication module U8 and a first reset circuit, the first reset circuit is connected with a reset pin of the telecommunication module U8, the signal input and output of the telecommunication module U8 are connected with the data processing circuit;

9. The data interaction circuit supporting remote communication and local area network communication of claim 8, wherein the data processing circuit comprises a single-chip U7, a first oscillation starting circuit, a second reset circuit and a rectifying and filtering circuit, and the first oscillation starting circuit, the second reset circuit and the rectifying and filtering circuit are all connected with the single-chip U7;

10. The data communication circuit supporting remote communication and local area network communication of claim 1, wherein the sensor circuit comprises a temperature and humidity detection circuit, an air quality detection circuit and a photosensitive detection circuit, and the temperature and humidity detection circuit, the air quality detection circuit and the photosensitive detection circuit are all connected to the data processing circuit and the power circuit.