Industrial wireless wired dual-mode remote control device and remote control method

文档序号：170631 发布日期：2021-10-29 浏览：28次中文

阅读说明：本技术 工业无线有线双模遥控装置及遥控方法 (Industrial wireless wired dual-mode remote control device and remote control method ) 是由白雪峰郭学坤贾贵青刘刚刘佳高达刘海龙袁海东姜亚先邬阳杨乾辰于 2021-07-22 设计创作，主要内容包括：本发明涉及工业无线有线双模遥控装置及遥控方法,包括有线无线发射控制终端和无线接收控制终端；有线无线发射控制终端包括发射端供电电路、发射端微处理器、按键采集单元、ADC采集单元、有线通信单元和无线通信单元；无线接收控制终端包括接收端供电电路、接收端微处理器、无线接收单元、数据输出单元；无线通信单元和无线接收单元采用LORA扩频通信技术。本发明可采用有线通信方式也可采用无线通信方式,在无线无法作用的环境中,可无缝切换至有线模式,保证生产不间断进行。同时利用LORA无线扩频技术,通过扩频把信号扩展到带宽较宽的噪声中,获得扩频增益,功耗低,抗干扰能力强,透传能力强,大大提高在工业环境中的应用稳定性与通信距离。(The invention relates to an industrial wireless wired dual-mode remote control device and a remote control method, comprising a wired wireless transmitting control terminal and a wireless receiving control terminal; the wired and wireless transmission control terminal comprises a transmitting terminal power supply circuit, a transmitting terminal microprocessor, a key acquisition unit, an ADC acquisition unit, a wired communication unit and a wireless communication unit; the wireless receiving control terminal comprises a receiving end power supply circuit, a receiving end microprocessor, a wireless receiving unit and a data output unit; the wireless communication unit and the wireless receiving unit adopt the LORA spread spectrum communication technology. The invention can adopt a wired communication mode and a wireless communication mode, can seamlessly switch to a wired mode in the wireless non-functional environment, and ensures that the production is carried out continuously. Meanwhile, the LORA wireless spread spectrum technology is utilized, signals are spread to noise with wider bandwidth through spread spectrum, spread spectrum gain is obtained, power consumption is low, the anti-interference capability is strong, the transparent transmission capability is strong, and the application stability and the communication distance in the industrial environment are greatly improved.)

1. The industrial wireless wired dual-mode remote control device comprises a transmitting control terminal and a receiving control terminal, and is characterized in that: specifically, a wired wireless transmitting control terminal and a wireless receiving control terminal are adopted; the wired and wireless transmission control terminal comprises a transmitting end power supply circuit, a transmitting end microprocessor, a key acquisition unit and an ADC (analog to digital converter) acquisition unit which are connected with the input end of the transmitting end microprocessor, and a wired communication unit and a wireless communication unit which are connected with the output end of the transmitting end microprocessor; the transmitting terminal microprocessor processes the input signal of the key acquisition unit and the data acquired by the ADC acquisition unit and packages the processed input signal into a data packet, and controls the wireless communication unit and the wired communication unit to transmit data packet signals;

the wireless receiving control terminal comprises a receiving end power supply circuit, a receiving end microprocessor, a wireless receiving unit connected with the input end of the receiving end microprocessor and a data output unit connected with the output end of the receiving end microprocessor; the wireless receiving unit transmits the data packet received from the wireless communication unit to the receiving end microprocessor, and the receiving end microprocessor checks the data packet to be correct and then sends the data packet to the data output unit for use by external equipment; the wireless communication unit and the wireless receiving unit adopt LORA spread spectrum communication technology.

2. The industrial wireless-wired dual-mode remote control device as claimed in claim 1, wherein: the transmitting terminal microprocessor comprises chips U3A, U3B, U3C and a communication state indicating unit, wherein the communication state indicating unit comprises a STATUS LED lamp and a resistor R2, and a pin 175 of the U3B is connected with the communication state indicating unit LED.

3. The industrial wireless-wired dual-mode remote control device as claimed in claim 1, wherein: the transmitting end power supply circuit comprises a transmitting end linear voltage stabilizing unit; the transmitting end linear voltage stabilizing unit comprises chips U1, U2, U5, field effect transistors Q1, Q2, capacitors C1, C2, C3, C4, C33, C34, resistors R1, R2, R21, R22, R23, diodes D1, D3, D4, D5, D6, D7, inductors L1 and L2; the transmitting end linear voltage stabilizing unit comprises an anti-reverse connection module, when the positive polarity and the negative polarity of a power supply are connected reversely, Q1 is cut off, a power supply circuit does not work, when the positive polarity and the negative polarity of the power supply are connected correctly, Q1 is switched on, the power supply is gradually reduced to 12V, 5V and 3.3V from 24V sequentially through U5, U1 and U2, wherein 5V supplies power for the wireless communication unit and the wired communication unit, and 3.3V supplies power for the transmitting end microprocessor.

4. The industrial wireless-wired dual-mode remote control device of claim 2, wherein: the key acquisition unit comprises BT 1-BT 9 and EM which are respectively connected with pins 139-147, 150-153 and 112 of the emitting end microprocessors U3A and U3B, and the emitting end microprocessors continuously and circularly scan key states.

5. The industrial wireless-wired dual-mode remote control device of claim 2, wherein: the ADC acquisition unit comprises resistors R10-R17, Hall handles JS 1-JS 4, JS1 is connected with pins 19 and 24 of a transmitting end microprocessor U3A, JS2 is connected with pins 25 and 26 of a transmitting end microprocessor U3A, JS3 is connected with 27 th and 28 th pins of the transmitting end microprocessor, JS4 is connected with pins 32 and 33 of the transmitting end microprocessor U3A.

6. The industrial wireless-wired dual-mode remote control device of claim 2, wherein: the wired communication unit comprises a U4 chip, a capacitor C31, a resistor R9 and a diode D2, wherein pins 1 and 4 of the U4 are respectively connected with pins 123 and 122 of the microprocessor U3A at the transmitting end.

7. The industrial wireless-wired dual-mode remote control device of claim 2, wherein: the wireless communication unit comprises a WL chip, wherein pins 1, 2, 3, 4 and 5 of the WL chip are respectively connected with pins 119, 120, 121, 117 and 118 of a transmitting-end microprocessor U3A.

8. A remote control method of an industrial wireless-wired dual mode remote control device according to any one of claims 1 to 11, comprising: the wired and wireless transmitting control terminals transmit the remote control command to the wireless receiving control terminal through the wireless communication unit by adopting an encryption LORA spread spectrum technology, the wireless receiving control terminal decrypts the received wireless data, converts the decrypted data into an effective remote control command after verification, and then transmits a remote control command communication data output unit to external equipment needing to be controlled; or the wired wireless transmission control terminal directly transmits the wireless transmission control terminal to the external device to be controlled by the wired communication unit.

9. The remote control method of the industrial wireless and wired dual-mode remote control device, as claimed in claim 8, specifically comprising the steps of:

step one, a wired wireless transmitting terminal acquires the signal quantity of a key acquisition unit and an ADC acquisition unit;

secondly, the transmitting end microprocessor encodes and encrypts the acquired data after acquiring the acquired data, and then packages the data;

transmitting the packed data to a wired communication unit and a wireless communication unit by a transmitting terminal microprocessor through a data bus for sending;

step four, detecting whether the data transmission of the wired communication unit, the wireless communication unit and the wireless receiving unit is normal;

if the wired communication unit is not connected with the data receiving equipment, the transmitting end microprocessor suspends the wired transmitting task and orders the wireless communication unit to wirelessly transmit the data;

if the wired data transmission is detected to be normal, suspending the wireless transmitting task and commanding the wired communication unit to transmit the data in a wired mode;

if the wireless communication unit is detected to have a fault in wireless data transmission, so that the wireless receiving control terminal cannot normally receive data transmitted by the wireless transmitting control terminal, the wireless receiving control terminal judges the communication state of the two terminals according to the heartbeat signal, and once the wireless receiving control terminal is lost, the wireless receiving control terminal immediately clears all data transmitted to the data output unit and sends an emergency stop signal to enable the subsequent equipment to carry out emergency operation of shutdown processing on the signal;

step five, after the wireless receiving control terminal receives the wireless data, decoding the data;

sixthly, the receiving end microprocessor proofreads the data decoded by the wireless receiving unit;

and step seven, the receiving end microprocessor transmits the corrected data to the data output unit for use by external equipment.

10. The remote control method of an industrial wireless-wired dual mode remote control device according to claim 8, characterized in that: the remote control data consists of a 2bytes address segment, a 1 bytes frequency segment, a 16bytes data segment, a 2bytes check segment and a 1byte heartbeat segment.

Technical Field

The invention relates to the field of electronic, wireless communication and remote control equipment, in particular to a wireless and wired dual-mode remote control device and a remote control method applied to industry.

Background

In the field of industrial control, particularly engineering machinery, real-time remote operation of equipment is often required, for example, mechanical actions matched with a large number of electromagnetic valves, an electro-hydraulic control device and special requirements of some mechanical equipment on operation linearity are also provided, so that the control requirement of analog quantity is more and more, for example, concrete wet-blasting machines, concrete pump trucks, overhead working trucks, arch truss trolleys and the like are multi-joint arm support structures.

At present, most of the control methods commonly adopted by enterprises adopt three methods of manual console control, wired remote control and wireless remote control.

The manual operation platform control, the operation people platform, stand or sit around equipment or the equipment on fixed position operate equipment, because personnel can not walk about, the sight is limited, operating efficiency is not high to personnel are close to equipment work area or directly put into equipment work area, very dangerous.

Wired remote control, also called wired remote controller, remote control's distance depends on the length of remote control cable, and control efficiency is very high, but because the topography on scene is often more complicated, and the length of cable is limited moreover to the cable need pull on ground, has the potential safety hazard.

The wireless remote control is realized, namely, a wireless remote controller is used for operating and controlling equipment, so that the problems that personnel in the prior two operation modes cannot move, the sight line is limited, the remote control distance is limited by a cable are avoided, the remote control efficiency is very high, and at present, a plurality of remote controls are infrared, Bluetooth, WIFI or 2.4G radio frequency communication. The remote control mode has the advantages that the communication distance is short, the anti-interference capacity is poor, especially in the industrial field, due to the fact that high-safety operation is involved, the requirements of a working scene on signal quality are high in many times, wireless remote control is used independently, once wireless communication faults occur, accidents can occur greatly, and heavy loss is caused. And therefore, the project progress cannot be guaranteed. Because the requirement on the continuity of the production progress in industrial engineering is high, most of the existing LORA wireless radio frequency communication modules or terminals are used as data transmission radio stations, the control fields for the industrial field, particularly the engineering machinery are few, and the real-time performance and the safety are not considered comprehensively.

The present application was made based on this.

Disclosure of Invention

In order to overcome the defects brought by the operation of equipment or machinery in the prior art in the field of industrial control, the invention provides an industrial wireless wired dual-mode remote control device and a remote control method, which have wired communication and wireless communication modes, can be seamlessly switched to a wired mode in a wireless non-functional environment, and ensure that the production is carried out uninterruptedly. Meanwhile, LORA wireless communication is adopted, and the anti-interference capability and the transparent transmission capability are strong through a spread spectrum transmission mode, so that the application stability and the communication distance of the invention in an industrial environment are greatly improved.

The industrial wireless wired dual-mode remote control device comprises a wired wireless transmitting control terminal and a wireless receiving control terminal; the wired and wireless transmission control terminal comprises a transmitting end power supply circuit, a transmitting end microprocessor, a key acquisition unit and an ADC (analog to digital converter) acquisition unit which are connected with the input end of the transmitting end microprocessor, and a wired communication unit and a wireless communication unit which are connected with the output end of the transmitting end microprocessor; the transmitting terminal microprocessor processes the input signal of the key acquisition unit and the data acquired by the ADC acquisition unit and packages the processed input signal into a data packet, and controls the wireless communication unit and the wired communication unit to transmit data packet signals; the wireless receiving control terminal comprises a receiving end power supply circuit, a receiving end microprocessor, a wireless receiving unit connected with the input end of the receiving end microprocessor and a data output unit connected with the output end of the receiving end microprocessor; the wireless receiving unit transmits the data packet received from the wireless communication unit to the receiving end microprocessor, and the receiving end microprocessor checks the data packet to be correct and then sends the data packet to the data output unit for use by external equipment.

The invention provides a preferable scheme, the transmitting terminal microprocessor comprises chips U3A, U3B and U3C and a communication state indicating unit, the communication state indicating unit comprises a STATUS LED lamp and a resistor R2, and a pin 175 of the U3B is connected with the communication state indicating unit LED.

The invention provides a preferable scheme, wherein the transmitting end power supply circuit comprises a transmitting end linear voltage stabilizing unit; the transmitting end linear voltage stabilizing unit comprises chips U1, U2, U5, field effect transistors Q1, Q2, capacitors C1, C2, C3, C4, C33, C34, resistors R1, R2, R21, R22, R23, diodes D1, D3, D4, D5, D6, D7, inductors L1 and L2; the transmitting end linear voltage stabilizing unit comprises an anti-reverse connection module, when the positive polarity and the negative polarity of a power supply are connected reversely, Q1 is cut off, a power supply circuit does not work, when the positive polarity and the negative polarity of the power supply are connected correctly, Q1 is switched on, the power supply is gradually reduced to 12V, 5V and 3.3V from 24V sequentially through U5, U1 and U2, wherein 5V supplies power for the wireless communication unit and the wired communication unit, and 3.3V supplies power for the transmitting end microprocessor.

The invention provides a preferable scheme, wherein the key acquisition unit comprises BT 1-BT 9 and EM which are respectively connected with pins 139-147, 150-153 and 112 of a transmitting end microprocessor U3A and U3B, and the transmitting end microprocessor continuously and circularly scans the key state.

The invention provides a preferable scheme, wherein the ADC acquisition unit comprises resistors R10-R17, Hall handles JS 1-JS 4, JS1 is connected with pins 19 and 24 of a transmitting end microprocessor U3A, JS2 is connected with pins 25 and 26 of a transmitting end microprocessor U3A, JS3 is connected with pins 27 and 28 of the transmitting end microprocessor, and JS4 is connected with pins 32 and 33 of the transmitting end microprocessor U3A.

The invention provides a preferable scheme, the wired communication unit comprises a U4 chip, a capacitor C31, a resistor R9 and a diode D2, wherein pins 1 and 4 of the U4 are respectively connected with pins 123 and 122 of a microprocessor U3A at a transmitting end.

The invention provides a preferable scheme, the wireless communication unit comprises a WL chip, and pins 1, 2, 3, 4 and 5 of the WL chip are respectively connected with pins 119, 120, 121, 117 and 118 of a microprocessor U3A at a transmitting end.

Secondly, the remote control method of the industrial wireless and wired dual-mode remote control device is characterized by comprising the following steps:

step one, a wired wireless transmitting terminal acquires the signal quantity of a key acquisition unit and an ADC acquisition unit;

secondly, the transmitting end microprocessor encodes and encrypts the acquired data after acquiring the acquired data, and then packages the data;

transmitting the packed data to a wired communication unit and a wireless communication unit by a transmitting terminal microprocessor through a data bus for sending;

step four, detecting whether the data transmission of the wired communication unit, the wireless communication unit and the wireless receiving unit is normal;

if the wired data transmission is detected to be normal, suspending the wireless transmitting task and commanding the wired communication unit to transmit the data in a wired mode;

if the wireless data transmission of the wireless communication unit is detected to be failed, so that the wireless receiving control terminal cannot normally receive the data transmitted by the wireless transmitting control terminal, the wireless receiving control terminal judges the communication state of the two terminals according to the heartbeat signal, once the data are lost, the wireless receiving control terminal immediately clears all the data transmitted to the data output unit and sends an emergency stop signal to enable the subsequent equipment to carry out emergency operation of stop processing on the signal;

step five, after the wireless receiving control terminal receives the wireless data, decoding the data;

sixthly, the receiving end microprocessor proofreads the data decoded by the wireless receiving unit;

and step seven, the receiving end microprocessor transmits the corrected data to the data output unit for use by external equipment.

The invention provides a preferable scheme, and the remote control data consists of a 2bytes address segment, a 1 bytes frequency segment, a 16bytes data segment, a 2bytes check segment and a 1 bytes heartbeat segment.

Compared with the prior art, the invention can realize the following technical effects:

(1) the invention can adopt a wired communication mode and a wireless communication mode, can seamlessly switch to a wired mode in the wireless non-functional environment, and ensures that the production is carried out continuously.

(2) The invention utilizes LORA wireless spread spectrum technology to spread signals to noise with wider bandwidth through spread spectrum, obtains spread spectrum gain, has low power consumption, extremely strong anti-interference capability and extremely strong transmission capability, and greatly improves the application stability and the communication distance of the invention in industrial environment.

(3) The wireless data of the invention is transmitted in an encryption mode, heartbeat signals are added in the wireless data, and a detection mechanism in the center is arranged between the wired data and the equipment and between the wireless data and the wireless data, so that the safety of system control is improved, and safe and ultra-long-distance industrial remote control can be realized. The method is particularly suitable for wireless communication schemes in the industrial field and has very good popularization value.

Drawings

FIG. 1 is a block diagram of an industrial wireless/wired dual-mode remote control device according to the present invention;

FIG. 2 is a schematic diagram of a microprocessor at the transmitting end of the industrial wireless wired dual-mode remote control device according to the present invention;

FIG. 3 is a schematic diagram of a transmitting end power supply circuit of the industrial wireless wired dual-mode remote control device according to the present invention;

FIG. 4 is a schematic diagram of a wired communication unit of the industrial wireless-wired dual-mode remote control device of the present invention;

FIG. 5 is a schematic diagram of a wireless communication unit of the industrial wireless-wired dual-mode remote control device of the present invention;

FIG. 6 is a schematic diagram of a key collection unit of the industrial wireless/wired dual-mode remote control device according to the present invention;

FIG. 7 is a schematic diagram of an ADC acquisition unit of the industrial wireless and wired dual-mode remote control device of the present invention;

FIG. 8 is a schematic diagram of a microprocessor at the receiving end of the industrial wireless/wired dual-mode remote control device according to the present invention;

FIG. 9 is a schematic diagram of a power supply circuit at the receiving end of the industrial wireless/wired dual-mode remote control device according to the present invention;

FIG. 10 is a schematic diagram of a wireless receiving unit of the industrial wireless/wired dual-mode remote control device according to the present invention;

FIG. 11 is a schematic diagram of a data output unit of the industrial wireless/wired dual-mode remote control device according to the present invention;

FIG. 12 is a schematic block diagram of an industrial wireless/wired dual-mode remote control method according to the present invention.

Detailed Description

The following description of the embodiments of the present invention, such as the connection relationship of the circuits and the function and operation principle of the parts involved, will be further explained by referring to the drawings and the examples, so as to enable those skilled in the art to more fully understand the concept and technical scheme of the present invention.

Referring to fig. 1, the industrial wireless wired dual-mode remote control device of the present embodiment includes a wired wireless transmission control terminal formed by connecting a transmitting end microprocessor with a linear voltage stabilizing unit, a key collecting unit, an ADC collecting unit, a wireless communication unit, and a wired communication unit, respectively; the receiving end microprocessor respectively forms a wireless receiving control terminal with the linear voltage stabilizing unit, the wireless receiving unit and the data output unit.

Wired wireless transmission control terminal:

referring to fig. 2, the transmitting-side microprocessor is composed of a chip U3 (including U3A, U3B, and U3C), and capacitors C6, C7, C9 to C30, and C35 of related peripheral circuit components, resistors R4 to R8, R24, and crystal oscillators X1 and X2.

Referring to fig. 3, the linear voltage stabilizing unit at the transmitting end is composed of chips U1, U2, U5, field effect transistors Q1, Q2, capacitors C1 to C4, C33, C34, resistors R1, R2, R21 to R23, diodes D1, D3, D4 to D7, inductors L1, and L2.

Referring to fig. 4, the wired communication unit includes U4, C31, R9 and D2, and the pins 1 and 4 of U4 are connected to the pins 123 and 122 of the microprocessor.

Referring to fig. 5, the wireless communication unit includes a WL chip, and the 1, 2, 3, 4, 5 pins of the WL are respectively connected to the pins 119, 120, 121, 117, 118 of the transmitting side microprocessor U3A to form the wireless communication unit. The transmitting end microprocessor/receiving end microprocessor is connected with the 5-path coding switch, a communication channel of the wireless communication unit/wireless receiving unit can be set, wherein 96, 97, 98, 99 and 100 of the transmitting end microprocessor are connected with 6, 7, 8, 9 and 10 pins of the coding switch, and the connection principle of the wireless receiving control terminal is the same.

Referring to fig. 6, the key collection unit is connected to an external switch by a JP1 communication cable, and includes BT 1-BT 9 and EM, and is connected to pins 139-147, 150-153, and 112 of microprocessors U3A and U3B.

Referring to fig. 7, the ADC acquisition unit is formed by connecting resistors R10 to R17, hall handles JS1 to JS4, JS1 and pins 19 and 24 of the emitter microprocessor, JS2 and pins 25 and 26 of the emitter microprocessor, JS3 and pins 27 and 28 of the emitter microprocessor, and JS4 and pins 32 and 33 of the emitter microprocessor.

Wireless reception control terminal:

referring to fig. 8, the receiving microprocessor also includes U1 (including U3A, U3B, and U3C), a plurality of capacitors, resistors, and a crystal oscillator. The connection method of the receiving end microprocessor and the transmitting end microprocessor is the same, only the labels are different, and the model of the microprocessor is STM32F429IGT 6.

Referring to fig. 9, the receiving-end linear regulator unit includes a fet Q1, chips U2 and U3, resistors R3 and R8, capacitors C6, C7, C9 and C10, an inductor L1, and diodes D1 and D6.

Referring to fig. 10, the wireless receiving unit includes a WL chip, and pins 1, 2, 3, 4, and 5 of the WL are respectively connected to pins 117, 118, 120, 121, and 119 of the receiving-side microprocessor U3A. The wireless receiving control terminal receives the command by the wireless receiving unit, performs communication check and decoding on the wireless signal, and transmits the data to the microprocessor at the receiving end for further data check and packet processing; the wireless receiving unit is the same as the wireless communication unit, all uses as prior art, adopts wireless communication module, and the model is: SX 1278.

Referring to fig. 11, the data output unit includes U4, C8, R17 and D9, and is formed by connecting the 1 st and 4 th pins of U4 and the 123 th and 122 th pins of the receiving-end microprocessor U3A, and the principle is the same as that of the wired communication unit of the wired and wireless transmission control terminal.

Referring to fig. 12, in the remote control method of the industrial wireless wired dual-mode remote control device according to the embodiment, the industrial wireless wired dual-mode remote control device is used to implement command transmission between the wired wireless transmission control terminal and the wireless reception control terminal, or directly connect the wired wireless transmission control terminal with an external device to perform direct command transmission. The method specifically comprises the following steps: