Belt conveyor control system and belt conveyor

Abstract

The invention relates to a belt conveyor control system and a belt conveyor. The control system comprises a main control box, a control box and a control box, wherein the main control box is mounted at a machine head of the belt conveyor; the protection system comprises a protection host and a plurality of stay wire emergency stop protectors, the protection host and the plurality of stay wire emergency stop protectors are arranged along the line of the belt conveyor, the main control box, the protection host and the plurality of stay wire emergency stop protectors are connected through communication lines, and the stay wire emergency stop protectors are used for enabling the belt conveyor to stop emergently. According to the invention, the belt conveyor is convenient to start and stop in the maintenance work of the middle section of the belt conveyor, the implementation difficulty is reduced, and the practical value is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of mining equipment; in particular, the present invention relates to a belt conveyor control system and a belt conveyor. Background Art

[0002] Belt conveyors are often used for long-distance transportation in coal mines and other mining fields. Due to the special operation location, it is difficult for maintenance personnel to communicate in time, which will lead to difficulties in maintenance work. Especially during the maintenance of the intermediate section, if the belt conveyor needs to be started and stopped during the maintenance process, it is necessary to go back and forth to the control operation point, which is inefficient. Summary of the invention

[0003] In view of this, the present invention provides a belt conveyor control system and a belt conveyor, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0004] In order to achieve the aforementioned object, a first aspect of the present invention provides a belt conveyor control system, wherein the control system comprises: A main control box, which is installed at the head of the belt conveyor; and A protection system, the protection system includes a protection host and multiple pull-wire emergency stop protections configured along the belt conveyor, the main control box, the protection host and the multiple pull-wire emergency stop protections are connected via a communication line, and the pull-wire emergency stop protection is used to make the belt conveyor stop urgently.

[0005] In the control system as described above, optionally, each of the pull-wire emergency stop protections is equipped with a receiving antenna and a wireless signal receiving module. In addition, the control system is further equipped with a remote control, which is equipped with a transmitting antenna and a wireless signal transmitting module. The pull-wire emergency stop protection receives the remote control signal transmitted by the remote control and transmits the remote control signal and the pull-wire emergency stop signal to the protection host through the communication line. The protection host transmits the remote control signal and the protection signal of the protection host to the main control box, and the main control box controls the belt conveyor through logical judgment.

[0006] In the control system as described above, optionally, adjacent pull-wire emergency stop protection intervals have the same installation distance, and the wireless signal transmission power of the remote controller is at least sufficient to support a coverage range with a radius of half the installation distance.

[0007] In the control system as described above, optionally, the installation distance is 50 meters.

[0008] In the control system as described above, optionally, the wireless signal transmitting module and the wireless signal receiving module comply with the z-wave communication protocol, the DMR communication protocol or the WHDI communication protocol, and the transmitting antenna and the receiving antenna are respectively adapted to the wireless signal transmitting module and the wireless signal receiving module.

[0009] In the control system as described above, optionally, the pull-wire emergency stop protection further includes a detection circuit, a microprocessor control unit and a wired communication interface circuit, the wireless signal receiving module is used to demodulate the remote control signal into an electrical signal, the detection circuit is used to restore the electrical signal to a digital signal containing the remote control signal, the microprocessor control unit processes the digital signal and transmits the pull-wire emergency stop protection status and the remote control signal to the protection host through the wired communication interface circuit.

[0010] In the control system as described above, optionally, the remote control further includes a coding module and an operating device, the coding module receives an operating signal from the operating device, and generates a control data code according to the position of the operating signal combined with function settings and variable settings. The control data is encoded in a digital or binary format. After the control data is encoded, it is transmitted to the wireless signal transmission module for modulation, and the remote control signal is transmitted via the transmitting antenna.

[0011] In the control system as described above, optionally, the encoding module includes an operation control circuit, a power control circuit, a buzzer drive circuit, a read-only memory and a transmission frequency shift keying circuit, and the operation control circuit, the power control circuit, the buzzer drive circuit, the read-only memory and the transmission frequency shift keying circuit are respectively connected to the microprocessor control unit of the encoding module, and the operating device circuit, the power control circuit and the buzzer drive circuit are respectively connected to the microprocessor control unit of the encoding module of the remote control.

[0012] In the control system as described above, optionally, the communication line is a bus communication line.

[0013] In order to achieve the aforementioned objective, a second aspect of the present invention provides a belt conveyor, wherein the belt conveyor has a control system as described in any one of the aforementioned first aspects.

[0014] It can be seen from the above technical solutions of the present invention that the present invention proposes a belt conveyor control system that is controllable along the line, which reduces the difficulty of conveyor belt maintenance by providing wire pull emergency stop protection.

[0015] In a further technical solution, a wireless remote control signal is transmitted by a remote controller, and the pull-wire emergency stop protection is improved to enable it to receive the remote control signal, and the remote control signal is gradually transmitted to the main control box through the pull-wire emergency stop protection, so as to achieve the purpose of remote control everywhere along the belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. It should be understood that the accompanying drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings: Figure 1 A schematic block diagram showing a belt conveyor control system according to the present invention; Figure 2 Show Figure 1 A schematic block diagram of a remote controller of the control system; Figure 3 Show Figure 2 A circuit diagram of the coding module of the remote controller; Figure 4 Show Figure 1 Circuit diagram of the pull-wire emergency stop protection of the control system; Figure 5 Show Figure 1 Circuit diagram of the protection host of the control system; Figure 6 Show Figure 1 Circuit diagram of the main control box of the control system.

[0017] Figure numerals: 1. belt conveyor control system; 2. main control box; 3. belt conveyor; 4. machine head; 5. protection system; 6. protection host; 7. pull-wire emergency stop protection; 8. communication line; 9. receiving antenna; 10. wireless signal receiving module; 11. remote control; 12. transmitting antenna; 13. wireless signal transmitting module; 14. encoding module; 15. operating device. DETAILED DESCRIPTION

[0018] With reference to the accompanying drawings and specific embodiments, the structure, working principle, characteristics and advantages of the belt conveyor control system and the belt conveyor of the present invention will be described below in an exemplary manner. However, all descriptions should not be used to form any limitation on the present invention.

[0019] In addition, for any single technical feature described or implied in the embodiments mentioned in this document or any single technical feature displayed or implied in the drawings, the present invention still allows for continued arbitrary combination or deletion between these technical features (or their equivalents) without any technical obstacles, and thus it should be considered that these more embodiments according to the present invention are also within the scope of the description of this document.

[0020] Figure 1A schematic block diagram of a belt conveyor control system according to the present invention is shown.

[0021] Depend on Figure 1 It can be seen that the belt conveyor control system 1 may include a main control box 2 and a protection system 5. The figure also schematically shows the belt conveyor between the front and rear rollers, and the leftmost head in the figure.

[0022] The main control box 2 can be used for electrical control of the entire system, for example but not limited to controlling the start, stop and speed regulation of the drive motor of the belt conveyor. In some embodiments, the main control box 2 can also monitor the operating status of the belt conveyor in real time, and can promptly detect and alarm abnormal situations.

[0023] The protection system 5 includes a protection host 6 and a plurality of pull-wire emergency stop protections 7. The protection host 6 can be used to ensure the safe operation of the belt conveyor and provide multi-faceted protection for the entire belt conveyor system, such as but not limited to the eight major protections of the belt conveyor protection system (slippage, coal pile / blockage, deviation, tearing, pull-wire emergency stop, temperature, smoke, and watering). The pull-wire emergency stop protection 7 is an emergency stop device that enables the staff to quickly and safely stop the operation of the belt conveyor in an emergency. By protecting the main machine 6 and the pull-wire emergency stop protection 7, the safety of the belt conveyor can be significantly improved, the risk of accidents can be reduced, and the safety of the operator and the stable operation of the equipment can be ensured.

[0024] In the illustrated embodiment, the main control box 2 can be located at the head 4 of the conveyor 3. The protection host 6 and the pull-wire emergency stop protection 7 of the protection system 5 can be configured along the belt conveyor 3, so that the staff can operate at various positions near the belt conveyor 3. The main control box 2, the protection host 6 and the pull-wire emergency stop protection 7 can be connected through a communication line 8. The wired connection through the communication line 8 can still achieve high stability and reliability, high transmission speed, stronger adaptability, and convenient maintenance in complex and harsh environments such as underground coal mines.

[0025] The control system of the belt conveyor is usually installed at the head. Therefore, compared with the case where the start and stop operations are also located at the head, the control system of this embodiment is equipped with a protection system configured along the belt conveyor, wherein the pull wire emergency stop protection can be installed at every fixed distance along the line, such as 50 meters. This makes it easy to start and stop long-distance belt conveyors at any time and operate flexibly. If the belt conveyor needs to be started during maintenance, there is no need to go back and forth to the control operation point, which advantageously improves the operating efficiency.

[0026] In this embodiment, a remote controller 11 may be further provided. The remote controller 11 may remotely transmit a signal to the pull-wire emergency stop protection 7.

[0027] In an optional embodiment, these pull-wire emergency stop protections 7 are installed at fixed intervals, as described above, they are connected by communication lines 8, communicate in a wired communication mode, and are communicatively connected to the protection host 6 and the main control box 2. The main control box 2 outputs a control signal to the belt conveyor 3, performs logical processing on the protection system status signal input by the protection system 5, and then outputs a control signal to control the belt conveyor 3.

[0028] As shown in the figure, in some embodiments, the pull-wire emergency stop protection 7 can be further equipped with a wireless signal receiving module 10 and a receiving antenna 9; accordingly, a remote controller 11 can be further provided, and the remote controller 11 can be equipped with a wireless signal transmitting module 13 and a transmitting antenna 12. Therefore, the remote controller 11 and the pull-wire emergency stop protection 7 can communicate through wireless communication.

[0029] The staff can use the remote controller 11 to transmit the remote control signal, and the nearby pull-wire emergency stop protection 7 can receive the remote control signal, and process and transmit it to the protection host and the main control box. Specifically, the pull-wire emergency stop protection 7 can convert the wireless signal of the remote control signal received from the remote controller 11 into an electrical signal and the status signal of the pull-wire emergency stop protection 7 through the communication line 8 according to the wired communication protocol to the protection host 6, and the protection host 6 can transmit the received remote control signal and the protection host 6's own protection system status signal together through the communication line 8 according to the wired communication protocol to the main control box 2. After receiving these signals, the main control box 2 can perform logical processing on the protection system status signal and the remote control signal, and control the belt conveyor through logical judgment. Through such a setting, in addition to being used for the transmission of protection signals, the communication line 8 can also be used for the transmission of control signals of the remote controller to realize various remote control functions of the belt conveyor.

[0030] In this example, the intervals between adjacent pull-wire emergency stop protections 7 can be the same. For example, a pull-wire emergency stop protection 7 can be configured every 50 meters. In this case, the communication power coverage radius of the wireless signal of the wireless signal transmitting module 13 and the transmitting antenna 12 and the wireless signal receiving module 10 and the receiving antenna 9 is at least half of the interval distance of the pull-wire emergency stop protection 7, which can be 25 meters in this example.

[0031] In an optional embodiment, a wireless signal receiving module 10 and a transmitting antenna 9 adapted thereto, a wireless signal transmitting module 13 and a receiving antenna 12 adapted thereto that comply with the z-wave communication protocol can be used. For example, the wireless transceiver module z-wave module can ensure a wireless coverage radius of 30 meters. By setting it in this way, the z-wave communication protocol can reduce power consumption and reduce interference with other wireless devices; in addition, the z-wave transceiver module can be the same module, which improves the reusability of the original parts and reduces the circuit cost.

[0032] In another optional embodiment, a wireless signal receiving module 10 and a transmitting antenna 9 adapted thereto, a wireless signal transmitting module 13 and a receiving antenna 12 adapted thereto that comply with the DMR communication standard protocol can be used. The DMR (Digital Mobile Radio) digital trunking communication standard is an open standard designed and formulated by ETSI (European Telecommunications Standards Institute) to meet the needs of low-end professional and commercial users in European countries for mobile communications. For example, a DMR function module can have the function of a DMR digital walkie-talkie, and a microcontroller, a radio frequency amplifier and other circuits can be integrated inside the module. Customers only need to connect external power supplies and other devices, and it can be easily and quickly embedded in various handheld devices to improve the comprehensive performance of terminal products.

[0033] In another optional embodiment, a wireless signal receiving module 10 and a transmitting antenna 9 adapted thereto, a wireless signal transmitting module 13 and a receiving antenna 12 adapted thereto that comply with the WHDI communication protocol can be used. WHDI can support lossless and uncompressed signal transmission, and has the advantage of low latency.

[0034] In an optional embodiment, the communication line 8 between the main control box 2 and the protection system 5 and the communication line 8 between the protection host 6 and the pull-wire emergency stop 7 as described above can be bus communication. For example, the bus communication can be selected as a CAN bus and communication protocol using twisted pair cables. The CAN communication protocol is a multi-master serial communication bus. At the same time, only one node sends data, and other nodes only receive data. It has the characteristics of strong anti-interference ability, strong real-time performance, high transmission rate, good scalability, etc.

[0035] In a further optional embodiment, the bus communication as described above can be optionally implemented by using CC-LINK fieldbus technology and fiber optic repeaters to achieve ultra-long-distance communication transmission. The transmission distance can exceed 20 kilometers, and has good stability. In addition, the control loop of the belt conveyor control system using the system has a faster response speed, effectively solving the problems of delayed action and missed action.

[0036] According to the above embodiments, the difficulties of long-distance belt conveyor maintenance work are effectively alleviated or solved. Even if the operation location is special, it is still applicable in scenes such as tunnels and coal mines, especially when repairing the middle section. If the belt conveyor needs to be started during the maintenance process, there is no need to go back and forth to control the operation place, which improves work efficiency. In these solutions, the belt conveyor is remotely controlled and the function can be realized without the need for additional networks along the line. It is very friendly to special use scenarios such as coal mines, with low implementation difficulty and no distortion of data information.

[0037] Figure 2 Show Figure 1 Schematic block diagram of the remote control of the control system.

[0038] Depend on Figure 2 It can be seen that the remote controller 11 may include a transmitting antenna 12, a wireless signal transmitting module 13, a coding module 14 and an operating device 15. The figure shows the communication connection relationship of these components with connecting lines, and the arrows at the ends of the connecting lines show the signal transmission direction at each connection relationship. In an optional embodiment, the coding module and the transmitting module can be connected by a 7-pin socket. The operating device 15 may include a combination of one or more forms of buttons, rockers, touch screens, rollers, voice control devices, etc. In the example in the figure, the operating device 15 can be a button, and the button can have a customized function, which can be a belt conveyor start button, a belt conveyor shutdown button, a belt conveyor speed adjustment button, or a button for adjusting other function settings or variable settings of the belt conveyor. When a button is pressed, a remote control signal is generated, and the encoding module 14 can sense the position of the button, for example, at position 0 or 1, and combine the position of this button with the function setting and variable setting to generate a corresponding control data code. The control data code is in digital or binary format. The control data code is transmitted to the wireless signal transmission module to the modulator to modulate the RF carrier. The modulator transmits the FM signal to the RF amplifier, which is then amplified and filtered by the low-pass filter before being sent to the transmitting antenna 12 to generate a transmitting signal.

[0039] Figure 3 Show Figure 2 Circuit diagram of the encoding module of the remote control.

[0040] Depend on Figure 3 It can be seen that the encoding module 14 of the remote controller 11 can be based on the microprocessor control unit as the core, and includes five main peripheral circuits such as the operation control circuit of the button circuit, the power control circuit, the buzzer drive circuit, the read-only memory with erasable electrical signals, and the transmitter frequency shift keying. These peripheral circuits and other oscillators are all connected to the microprocessor control unit. The communication connection relationship of these components is shown by connecting lines in the figure, and the arrows at the ends of the connecting lines show the signal transmission direction at each connection relationship. The power supply composed of 4 to 6 1.5 volt AA batteries supplies the power required by the remote controller 11. Except for the button circuit and the microprocessor control unit, which are directly connected to the power input, the power required by the remaining circuits (including the transmitter radio frequency module) can be controlled by the power control circuit according to the working process to minimize the power consumption of the transmitter.

[0041] When the button is pressed, the button circuit can send the data of the button to the microprocessor control unit. After the microprocessor control unit reads the position of the button, it combines the function setting and the variable setting to generate the corresponding control data code, which is in digital or binary format. After the control data is encoded into the remote control signal data, it is processed by the transmitting frequency shift keying circuit to generate a modulated signal and sent to the wireless signal transmitting module 13. After being modulated by the wireless signal transmitting module 13, the remote control signal is transmitted as a wireless signal of the remote control signal through the transmitting antenna 12, and the receiving antenna 9 of the pull-wire emergency stop protection 7 closest to the remote control will receive the wireless signal of the remote control signal.

[0042] In addition to the above-mentioned encoding functions, the microprocessor unit also performs self-diagnosis tests. When self-diagnosis finds a fault or abnormal power supply voltage, it shuts down according to the set program and generates corresponding fault information data, which is sent to the buzzer driver to drive the buzzer to sound an alarm and drive the LED indicator to remind the operator to take necessary measures.

[0043] The electrical signal erasable read-only memory is mainly used to store function settings, variable settings, fault information and other data. It can be connected to the maintenance tool through the interface socket to perform the function settings of the remote control, variable settings, or read the detailed data recorded in the memory. The set data can also be directly loaded through this interface socket to perform transceiver pairing or copy a spare transmitter.

[0044] Figure 4 Show Figure 1 Circuit diagram of the pull-wire emergency stop protection in the control system.

[0045] Depend on Figure 4 It can be seen that the pull-wire emergency stop protection 7 can include a receiving antenna 9, a wireless signal receiving module 10, a detection circuit, a microprocessor control unit, a wired communication interface circuit, an emergency stop switch and a conveyor power supply. The figure shows the communication connection relationship of these components with connecting lines, and the arrows at the ends of the connecting lines show the signal transmission direction at each connection relationship. The emergency stop switch is connected to the conveyor power supply and the microprocessor control unit, which is used to stop the conveyor in an emergency on site, and update the switch state to the microprocessor control unit to transmit the pull-wire emergency stop protection state. When the receiving antenna 9 receives the wireless signal of the remote control signal of the remote controller 3, it is demodulated into an electrical signal by the wireless signal receiving module 10, and the detection circuit restores the electrical signal to a digital signal containing the remote control signal. After being processed by the microprocessor control unit, the pull-wire emergency stop protection state and the remote control signal are transmitted to the protection host 6 via the communication line through the wired communication interface circuit.

[0046] Figure 5 Show Figure 1 Circuit diagram of the protection host of the control system.

[0047] Depend on Figure 5 It can be seen that the protection host 6 can include a wired communication interface circuit and a microprocessor control unit. The figure shows the communication connection relationship of these components with connecting lines, and the arrows at the ends of the connecting lines show the signal transmission direction at each connection relationship. The wired communication interface circuit is used to receive the main control signal transmitted from the main control box 2, the pull-wire emergency stop protection state and the remote control signal transmitted by the pull-wire emergency stop protection 7. The microprocessor control unit processes the remote control signal and the protection state signal of the protection system through the wired communication interface circuit and the communication line to the main control box 2 according to the wired communication protocol.

[0048] Figure 6 Show Figure 1 Circuit diagram of the main control box of the control system.

[0049] Depend on Figure 6 It can be seen that the main control box 2 can include a microprocessor control unit, a wired communication interface circuit and a belt conveyor actuator circuit. The figure shows the communication connection relationship of these components with connecting lines, and the arrows at the ends of the connecting lines show the signal transmission direction at each connection relationship. The main control box 2 performs logical processing on the protection system status signal and remote control signal transmitted from the protection host 6 through the microprocessor control unit, and transmits the main control signal to control the belt conveyor actuator circuit to control the belt conveyor.

[0050] Optionally, the microprocessor control unit can be a single-chip microcomputer system. In the embodiment of the present invention, a receiving antenna and a wireless signal receiving module are added on the basis of the pull-wire emergency stop protection using bus communication. The module converts the received wireless signal into an electrical signal, which is input into the microprocessor control unit of the pull-wire emergency stop protection, i.e., the single-chip microcomputer system. After processing, the electrical signal is transmitted to the protection host through wired communication together with the pull-wire emergency stop signal in the bus cable. The protection host then transmits the remote control signal and the original protection signal to the main control box of the belt conveyor. Finally, the control box controls the belt conveyor through logical judgment.

[0051] Optionally, the microprocessor control unit may be a programmable logic controller (PLC), a digital computing controller with a microprocessor for automated control, which can load control instructions into memory at any time for storage and execution, including various functions such as logic control, timing control, analog control, multi-level communication, etc. The programmable logic controller used is equivalent to or close to a compact computer host, and has more outstanding advantages in scalability and stability. At the same time, online programming can be performed at any time to facilitate on-site operators to handle more specific or complex on-site situations.

[0052] According to the present invention, by configuring a protective main machine and a plurality of pull-wire emergency stop protections along the belt conveyor, the difficulty of inspecting and repairing the conveyor belt is advantageously reduced.

[0053] In a further technical solution, by wireless communication between the pull-wire emergency stop protection 7 and the remote controller 11, a wireless communication protocol / standard method that can be implemented without additional networking or telecommunication communication network is selected. In this way, not only can wireless remote control be implemented without arranging any extra network equipment or cables, but also the amount of data to be transmitted is small, the implementation difficulty is low, and the difficulty of wireless remote control caused by long distance can be solved, the pull-wire emergency stop protection 7 is improved, and no extra manpower is wasted for installation, which has high practical value.

[0054] The present invention also provides a belt conveyor, which may have a control system as described above in conjunction with any embodiment. It can be understood from the above description that the belt conveyor will have the advantages of a corresponding control system and bring corresponding beneficial effects.

[0055] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above implementation without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the scope of the present invention.

Claims

1. A belt conveyor control system (1), characterized in that: The control system (1) comprises: A main control box (2), the main control box (2) being installed at the head (4) of the belt conveyor (3); and A protection system (5), the protection system (5) comprising a protection host (6) and a plurality of pull-wire emergency stop protections (7) arranged along the belt conveyor (3), the main control box (2), the protection host (6) and the plurality of pull-wire emergency stop protections (7) being connected via a communication line (8), the pull-wire emergency stop protections (7) being used to cause the belt conveyor (3) to stop in an emergency.

2. The control system (1) according to claim 1, characterized in that Each of the pull-wire emergency stop protection devices (7) is equipped with a receiving antenna (9) and a wireless signal receiving module (10). In addition, the control system (1) is further equipped with a remote controller (11), the remote controller (11) is equipped with a transmitting antenna (12) and a wireless signal transmitting module (13), the pull-wire emergency stop protection (7) receives the remote control signal transmitted by the remote controller (11) and transmits the remote control signal and the pull-wire emergency stop signal to the protection host (6) through the communication line (8), the protection host (6) transmits the remote control signal and the protection signal of the protection host (6) to the main control box (2), and the main control box (2) controls the belt conveyor (3) through logical judgment.

3. The control system (1) according to claim 2, characterized in that Adjacent pull-wire emergency stop protections (7) are spaced at the same installation distance, and the wireless signal transmission power of the remote controller (11) is at least sufficient to support a coverage range with a radius of half the installation distance.

4. The control system (1) according to claim 3, characterized in that The installation distance is 50 meters.

5. The control system (1) according to claim 2, characterized in that The wireless signal transmitting module (13) and the wireless signal receiving module (10) comply with the z-wave communication protocol, the DMR communication protocol or the WHDI communication protocol, and the transmitting antenna (12) and the receiving antenna (9) are respectively adapted to the wireless signal transmitting module (13) and the wireless signal receiving module (10).

6. The control system (1) according to claim 2, characterized in that The pull-wire emergency stop protection (7) further comprises a detection circuit, a microprocessor control unit and a wired communication interface circuit, the wireless signal receiving module (10) is used to demodulate the remote control signal into an electrical signal, the detection circuit is used to restore the electrical signal into a digital signal containing the remote control signal, the microprocessor control unit processes the digital signal and transmits the pull-wire emergency stop protection state and the remote control signal to the protection host (6) via the wired communication interface circuit.

7. The control system (1) according to claim 2, characterized in that The remote controller (11) further comprises an encoding module (14) and an operating device (15). The encoding module (14) receives an operating signal from the operating device (15), and generates a control data code according to the position of the operating signal, in combination with a function setting and a variable setting. The control data code is in a digital or binary format. After the control data code is transmitted to the wireless signal transmission module (13) for modulation, the remote control signal is transmitted via the transmitting antenna (12).

8. The control system (1) according to claim 7, characterized in that The encoding module (14) comprises an operation control circuit, a power control circuit, a buzzer drive circuit, a read-only memory and a transmission frequency shift keying circuit; the operation control circuit, the power control circuit, the buzzer drive circuit, the read-only memory and the transmission frequency shift keying circuit are respectively connected to the microprocessor control unit of the encoding module; the operation device circuit, the power control circuit and the buzzer drive circuit are respectively connected to the microprocessor control unit of the encoding module (14) of the remote controller (11).

9. The control system (1) according to claim 1, characterized in that The communication line (6) is a bus communication line.

10. A belt conveyor (3), characterized in that: The belt conveyor (3) has a control system (1) as claimed in any one of the preceding claims 1 to 9.

Images