CN113777991A - Industrial vehicle intelligent network controller and remote monitoring system thereof - Google Patents
Industrial vehicle intelligent network controller and remote monitoring system thereof Download PDFInfo
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- CN113777991A CN113777991A CN202111081964.XA CN202111081964A CN113777991A CN 113777991 A CN113777991 A CN 113777991A CN 202111081964 A CN202111081964 A CN 202111081964A CN 113777991 A CN113777991 A CN 113777991A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
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- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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Abstract
The invention discloses an industrial vehicle intelligent network controller and a remote monitoring system thereof. The problems that in an existing car networking control system, due to the fact that operation of each control unit is relatively isolated, nodes in a distributed system are more, communication data volume is large, information safety is reduced, control instruction setting is complex and the like are prone to being caused; the intelligent network controller comprises a power supply unit, an information acquisition unit, an intelligent network controller, a remote monitoring unit and a driving unit, wherein the power supply unit is respectively connected with the information acquisition unit and the intelligent network controller, the information acquisition unit is connected with the intelligent network controller, the remote monitoring unit is connected with an MCU of the intelligent network controller, and the driving unit is connected with the MCU of the intelligent network controller. The intelligent internet controller has the advantages that the accuracy and the safety of information transmission between the intelligent internet controller and the internet of vehicles background are effectively guaranteed, and the working stability and the information storage safety of the system are effectively protected.
Description
Technical Field
The invention relates to the field of vehicle intelligent networking control, in particular to an industrial vehicle intelligent networking controller and a remote monitoring system thereof.
Background
With the development of networking and intellectualization of industrial vehicles, the traditional industrial vehicles are combined with an informatization technology and gradually upgraded into intelligent logistics equipment integrating digital and intellectualized functions. The remote monitoring and management of industrial vehicles based on the Internet of vehicles platform and the vehicle control system becomes the key research direction of the current industrial vehicles. Each control unit in the traditional vehicle networking control system exists in a distributed control system mode, important data information in the system is transmitted and shared with a T-BOX (telematics BOX) through a CAN bus network, and then the T-BOX is interconnected with a background through wireless communication.
For example, a "car networking monitoring system and car networking control system" disclosed in chinese patent literature, whose publication number CN111861842A, publication date is 2020, 10, 30, includes a vehicle-mounted terminal, a server and a monitoring terminal, wherein the server is integrated with a car networking control system, and based on the beidou satellite navigation technology, the vehicle-mounted terminal is used to upload the position information and state information of the current vehicle to the server, and establish a network channel and a short message channel; the server is used for providing access service, communication service, Web service, map service, cache service and database service; the monitoring terminal is used for accessing the Web server to acquire vehicle dynamic data. Although the manual operation is simplified, the problems of huge communication data volume, reduced information safety, complex control instruction setting and the like in the system are still not effectively solved.
Disclosure of Invention
The invention mainly solves the problems that in the existing car networking control system, because the operation of each control unit is relatively isolated, and the number of nodes in a distributed system is more, the communication data volume is huge, the information security is reduced, the control instruction setting is complicated, and the like; the utility model provides an industrial vehicle intelligence networking controller and remote monitering system thereof, through function module such as integrated information collection, data storage, data encryption, drive control, network communication, bus communication, gather the information that each the control unit of car networking control system transmitted back, unified storage, encapsulation, encryption processing in intelligent networking controller is inside, the inside wireless communication module of rethread controller is with information transmission to backstage monitoring management, effectively guarantee intelligent networking controller and the information transmission accuracy and the security of car networking backstage.
The above technical problem of the present invention is mainly solved by the following technical solutions,
the invention relates to an industrial vehicle intelligent networking remote monitoring system, which comprises:
the power supply unit supplies power to the whole remote monitoring system, and when the power supply system fails, the power supply unit can be switched to a standby power supply and check the integrity of transmitted data;
the information acquisition unit is used for sending acquired switching value input signals, sensor signals and key information such as operating parameters and faults of the electric control system to the intelligent network connection controller;
the control unit processes the received data information through the MCU and sends a control instruction to perform function control on an external control system;
the remote monitoring unit is used for receiving monitoring information sent by the intelligent network connection controller and sending a remote control instruction;
and the driving unit is used for controlling the equipment and the executing mechanism of the distributed control system.
By adopting the scheme, the information in the system can be uniformly stored, packaged and encrypted, and then is transmitted to the background through the wireless communication module for monitoring and management, so that the accuracy and the safety of information transmission between the intelligent networking controller and the vehicle networking background are effectively guaranteed, and the situations of data redundancy, complex control instructions and the like in the system can be avoided.
Preferably, the power supply unit comprises a system power supply module, a power management module, a sensor power supply module, a standby lithium battery, a switch K1, a switch K2, a switch K3 and a switch K4;
a switch K1 is arranged between the system power supply module and the power management module, the first end of the switch K1 is connected with the power supply output end of the system power supply module, the second end of the switch K1 is connected with the input end of the power management module, and the input end of the power management module is provided with a voltage detector;
a switch K2 and a switch K3 are installed between the standby lithium battery and the power management module, the first end of the switch K2 is connected with the input end of the standby lithium battery, the second end of the switch K2 is connected with the first power supply output end of the power management module, the first end of the switch K3 is connected with the output end of the standby lithium battery, the second end of the switch K3 is connected with the standby input end of the power management module, when the standby lithium battery is in a charging state, the switch K2 is connected, the switch K3 is disconnected, when the standby lithium battery is in a power supply state, the switch K2 is disconnected, and the switch K3 is connected;
the power supply output end II of the power supply management module is connected with the input end of the sensor power supply module, the power supply output end III of the power supply management module is connected with the power supply input end of the MCU, and an energy storage unit is arranged in the power supply management module;
a switch K4 is arranged between the system power supply module and the information acquisition module, a first end of a switch K4 is connected with the output end of the sensor of the system power supply module, and a second end of a switch K4 is connected with a second power supply input end of the information acquisition module;
the output end of the sensor power supply module is connected with the first power supply input end of the information acquisition module.
The dual power supply scheme can prevent the system from data loss or delay caused by power failure.
Preferably, the control unit comprises a debugging/configuration module, a driving controller, a single-chip microcomputer MCU, an encryption chip and an external storage module, wherein the output end of the debugging/configuration module is bidirectionally connected with the debugging input end of the single-chip microcomputer MCU, the output end of the driving controller is connected with the input end of an interface controller of the single-chip microcomputer MCU, the information output end of the single-chip microcomputer MCU is connected with the input end of the encryption chip, the output end of the encryption chip is connected with the input end of the external storage module, and the output end of the external storage module is connected with the information input end of the single-chip microcomputer MCU.
By adopting the scheme, the information collected by the information acquisition unit in the vehicle networking control system can be processed and then transmitted to the background for monitoring and management.
Preferably, the method for switching the main power supply and the standby power supply comprises the following steps:
when the system power supply module supplies power, the switch K1 is switched on, 32V voltage is output to the power management module, the power management module outputs 3.3V voltage to the MCU and 9V voltage to the sensor, and the switch four-switch system power supply module transmits 9V voltage to the sensor signal acquisition module;
when a voltage detector in the power management module detects that the voltage of the input end of the power management module is 30-35V, an electric signal is sent to the MCU to control the switch K2 to be switched on and the switch K3 to be switched off, and the power management module outputs 32V to charge a standby lithium battery;
when the system power supply module is in fault power failure, the voltage detector cannot detect the voltage or the voltage is less than 9V, the energy storage unit supplies power to the system, the power management module sends an electric signal to the MCU, the MCU disconnects the switch K1, the switch K2 and the switch K4, switches on the switch K3, and the standby battery is converted into a power supply state to supply power to the system;
when the power supply module of the system fails and is powered off, the data is not stored in the external storage module, so that the data is lost, and the MCU receives the pulse signal during the power off and can re-collect and recover the lost data during the power off;
when the system data is transmitted to the external storage module, the data is lost or lost when power is off due to faults in the process of transmitting the system data to the external storage module, the external storage module does not receive the data and does not transmit a confirmation electric signal to the MCU, the MCU repeatedly transmits the data transmitted last time if the external storage module does not receive the confirmation electric signal within a certain time of transmitting the data to the external storage module, the next time of data retransmission is performed if the external storage module receives the confirmation electric signal, the external storage module checks the length of the received data, and if the data is lost or the length is smaller than the storage length, the external storage module abandons the stored data and does not transmit the confirmation electric signal to the MCU.
By adopting the method, when the main power supply fails, the backup power supply can be automatically switched to, so that uninterrupted power supply is ensured; meanwhile, the fault power supply can be thoroughly isolated from the system, so that secondary faults are avoided, and the reliability of the power supply system is improved.
Preferably, the information acquisition unit comprises an operation switch signal acquisition module, a sensor signal acquisition module, an instrument, a motor controller, a motor and a CAN bus network, wherein the input end of the operation switch signal acquisition module is connected with the output end of the sensor power supply module, the output end of the operation switch signal acquisition module is connected with the switching value input end of the MCU, the first input end of the sensor signal acquisition module is connected with the output end of the sensor power supply module, the second input end of the sensor signal acquisition module is connected with the second end of the hang-on K4, the first output end of the sensor signal acquisition module is connected with the frequency input end of the MCU, the second output end of the sensor signal acquisition module is connected with the first voltage input end of the MCU, and the third output end of the sensor signal acquisition module is connected with the second voltage input end of the MCU, the output end of the instrument is in bidirectional connection with the input end of the CAN bus network, the output end of the motor controller is in bidirectional connection with the input end of the CAN bus network, the input end of the motor controller is in bidirectional connection with the output end of the motor, and the output end of the CAN bus network is in bidirectional connection with the input end of the drive controller of the MCU.
By adopting the scheme, the data information can be conveniently acquired, and the data is not too huge and the data loss condition is not caused.
Preferably, an encryption chip in the control unit encrypts and decrypts information collected in the system, and the encryption and decryption method of the encryption chip is as follows:
s1: the MCU sends the information collected in the system, the hardware information of the MCU and the electric signal to the encryption chip through the SPI protocol;
s2: the encryption chip encrypts hardware information of the MCU to generate a first secret key;
s3: the encryption chip receives the information, randomly generates a character string, and adds the character string at the tail end of the data information;
s4: the encryption chip encrypts new data information through a hash function to generate primary hash encrypted data;
s5: carrying out hash encryption on the primary hash encrypted data by using a first key to generate secondary hash encrypted data;
s6: the encryption chip encrypts the storage address information of the secondary hash encrypted data in the external storage module by using the first key to generate a second key;
s7: the first key and the second key are stored in the encryption chip, and the twice hash encryption data is stored in the external storage module according to the information of the second key
S8: the decryption method comprises the steps of sending correct hardware information of the MCU to the encryption chip to obtain a second secret key, decrypting through the second secret key to obtain the storage position of data in the external storage module, and only reversely deducing the encryption process after obtaining the storage position of the data.
By adopting the scheme, the safety of data can be ensured.
Preferably, the remote monitoring unit comprises a management platform, a network communication module and a WIFI communication module, the first output end of the management platform is in two-way connection with the output end of the network communication module, the input end of the network communication module is in two-way connection with the network output end of the MCU, the second output end of the management platform is in two-way connection with the output end of the WIFI communication module, and the input end of the WIFI communication module is in two-way connection with the WIFI output end of the MCU.
By adopting the scheme, the management platform can receive monitoring information sent by the control unit and also can send a remote control instruction, and the control unit realizes remote control of execution and post and bus network equipment.
Preferably, the driving unit comprises an actuating mechanism, a high-side PWM output module and a switch output module, wherein the output end of the high-side PWM output module is connected with the first input end of the actuating mechanism, the input end of the high-side PWM output module is connected with the PWM output end of the MCU, the output end of the switch output module is connected with the second input end of the actuating mechanism, and the input end of the switch output module is connected with the switch output end of the MCU.
The control of the distributed control system equipment by adopting the scheme is realized by an interface controller of the MCU, a drive controller of the control unit and an external CAN bus network; the control of the actuating mechanism is realized by driving the actuating mechanism through an output control unit, a high-side PWM output module and a switch output module of the MCU.
Preferably, the industrial vehicle intelligent networking controller comprises: the control unit, the power management module, the sensor power supply module, the standby lithium battery, a switch K1, a switch K2, a switch K3, a network communication module, a WIFI communication module, a high-side PWM output module and a switch output module, wherein the second end of the switch K1 is connected with the input end of the power management module, the first end of the switch K2 is connected with the input end of the standby lithium battery, the second end of the switch K2 is connected with the power supply output end of the power management module, the first end of the switch K3 is connected with the output end of the standby lithium battery, the second end of the switch K3 is connected with the standby input end of the power management module, the second power supply output end of the power management module is connected with the input end of the sensor power supply module, the third power supply output end of the power management module is connected with the power supply input end of the control unit, and the input end of the network communication module is bidirectionally connected with the network output end of the control unit, the WIFI communication module input with the WIFI output of the control unit both way junction, the high side PWM output module input be connected with the PWM output of the control unit, the switch output module input with the control unit's switch output connect.
By adopting the scheme, the intelligent networking controller can uniformly store, encapsulate and encrypt information, and then transmits the information to the background for monitoring and management through the wireless communication module in the controller, so that the accuracy and the safety of information transmission between the intelligent networking controller and the background of the Internet of vehicles are effectively guaranteed.
The invention has the beneficial effects that: the dual-power scheme can effectively protect the working stability of the system and the information storage safety; after the information transmitted by each control unit of the Internet of vehicles control system is collected, the information is uniformly stored, packaged and encrypted in the intelligent Internet controller, and then the information is transmitted to the background through the wireless communication module in the controller for monitoring and management, so that the accuracy and the safety of the information transmission between the intelligent Internet controller and the Internet of vehicles background are effectively guaranteed.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a diagram of the encryption steps of the present invention.
Fig. 3 is a structural diagram of the intelligent networking controller of the present invention.
In the figure, 1 is a power supply unit, 2 is an information acquisition unit, 3 is a control unit, 4 is a remote monitoring unit, 5 is a driving unit, and 6 is an intelligent network controller.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
the intelligent networking remote monitoring system for the industrial vehicle of the embodiment comprises a power supply unit 1, an information acquisition unit 2, a control unit 3, a remote monitoring unit 4 and a driving unit 5, as shown in fig. 1.
The power supply unit comprises a system power supply module, a power management module, a sensor power supply module, a standby lithium battery, a switch K1, a switch K2, a switch K3 and a switch K4; a switch K1 is arranged between the system power supply module and the power management module, the first end of the switch K1 is connected with the power supply output end of the system power supply module, the second end of the switch K1 is connected with the input end of the power management module, and the input end of the power management module is provided with a voltage detector; a switch K2 and a switch K3 are installed between the standby lithium battery and the power management module, the first end of the switch K2 is connected with the input end of the standby lithium battery, the second end of the switch K2 is connected with the first power supply output end of the power management module, the first end of the switch K3 is connected with the output end of the standby lithium battery, the second end of the switch K3 is connected with the standby input end of the power management module, when the standby lithium battery is in a charging state, the switch K2 is connected, the switch K3 is disconnected, when the standby lithium battery is in a power supply state, the switch K2 is disconnected, and the switch K3 is connected; the power supply output end II of the power supply management module is connected with the input end of the sensor power supply module, the power supply output end III of the power supply management module is connected with the power supply input end of the MCU, and an energy storage unit is arranged in the power supply management module; a switch K4 is arranged between the system power supply module and the information acquisition module, a first end of a switch K4 is connected with the output end of the sensor of the system power supply module, and a second end of a switch K4 is connected with a second power supply input end of the information acquisition module; the output end of the sensor power supply module is connected with the first power supply input end of the information acquisition module.
The control unit 3 comprises a debugging/configuration module, a driving controller, a single-chip microcomputer MCU, an encryption chip and an external storage module, wherein the output end of the debugging/configuration module is in two-way connection with the debugging input end of the single-chip microcomputer MCU, the output end of the driving controller is connected with the input end of an interface controller of the single-chip microcomputer MCU, the information output end of the single-chip microcomputer MCU is connected with the input end of the encryption chip, the output end of the encryption chip is connected with the input end of the external storage module, and the output end of the external storage module is connected with the information input end of the single-chip microcomputer MCU. .
The main power supply and standby power supply switching method comprises the following steps:
when the system power supply module supplies power, the switch K1 is switched on, 32V voltage is output to the power management module, the power management module outputs 3.3V voltage to the MCU and 9V voltage to the sensor, and the switch four-switch system power supply module transmits 9V voltage to the sensor signal acquisition module;
when a voltage detector in the power management module detects that the voltage of the input end of the power management module is 30-35V, an electric signal is sent to the MCU to control the switch K2 to be switched on and the switch K3 to be switched off, and the power management module outputs 32V to charge a standby lithium battery;
when the system power supply module is in fault power failure, the voltage detector cannot detect the voltage or the voltage is less than 9V, the energy storage unit supplies power to the system, the power management module sends an electric signal to the MCU, the MCU disconnects the switch K1, the switch K2 and the switch K4, switches on the switch K3, and the standby battery is converted into a power supply state to supply power to the system;
when the power supply module of the system fails and is powered off, the data is not stored in the external storage module, so that the data is lost, and the MCU receives the pulse signal during the power off and can re-collect and recover the lost data during the power off;
when the system data is transmitted to the external storage module, the data is lost or lost when power is off due to faults in the process of transmitting the system data to the external storage module, the external storage module does not receive the data and does not transmit a confirmation electric signal to the MCU, the MCU repeatedly transmits the data transmitted last time if the external storage module does not receive the confirmation electric signal within a certain time of transmitting the data to the external storage module, the next time of data retransmission is performed if the external storage module receives the confirmation electric signal, the external storage module checks the length of the received data, and if the data is lost or the length is smaller than the storage length, the external storage module abandons the stored data and does not transmit the confirmation electric signal to the MCU.
The information acquisition unit 2 comprises an operation switch signal acquisition module, a sensor signal acquisition module, an instrument, a motor controller, a motor and a CAN bus network, wherein the input end of the operation switch signal acquisition module is connected with the output end of a sensor power supply module, the output end of the operation switch signal acquisition module is connected with the switching value input end of an MCU, the first input end of the sensor signal acquisition module is connected with the output end of the sensor power supply module, the second input end of the sensor signal acquisition module is connected with the second end of an open-hook K4, the first output end of the sensor signal acquisition module is connected with the frequency input end of the MCU, the second output end of the sensor signal acquisition module is connected with the first voltage input end of the MCU, the third output end of the sensor signal acquisition module is connected with the second voltage input end of the MCU, the output end of the instrument is bidirectionally connected with the input end of the CAN bus network, and the output end of the motor controller is bidirectionally connected with the input end of the CAN bus network, the input end of the motor controller is bidirectionally connected with the output end of the motor, and the output end of the CAN bus network is bidirectionally connected with the input end of the drive controller of the MCU.
As shown in fig. 2, the encryption chip in the intelligent network controller encrypts and decrypts the information collected in the system, and the encryption and decryption method of the encryption chip is as follows:
s1: the MCU sends the information collected in the system, the hardware information of the MCU and the electric signal to the encryption chip through the SPI protocol;
s2: the encryption chip encrypts hardware information of the MCU to generate a first secret key;
s3: the encryption chip receives the information, randomly generates a character string, and adds the character string at the tail end of the data information;
s4: the encryption chip encrypts new data information through a hash function to generate primary hash encrypted data;
s5: carrying out hash encryption on the primary hash encrypted data by using a first key to generate secondary hash encrypted data;
s6: the encryption chip encrypts the storage address information of the secondary hash encrypted data in the external storage module by using the first key to generate a second key;
s7: the first key and the second key are stored in the encryption chip, and the twice hash encryption data is stored in the external storage module according to the information of the second key
S8: the decryption method comprises the steps of sending correct hardware information of the MCU to the encryption chip to obtain a second secret key, decrypting through the second secret key to obtain the storage position of data in the external storage module, and only reversely deducing the encryption process after obtaining the storage position of the data.
The remote monitoring unit 4 comprises a management platform, a network communication module and a WIFI communication module. The first output end of the management platform is connected with the first network communication module output end in a two-way mode, the input end of the network communication module is connected with the second network output end of the MCU in a two-way mode, the second output end of the management platform is connected with the second WIFI communication module output end in a two-way mode, and the input end of the WIFI communication module is connected with the WIFI output end of the MCU in a two-way mode.
The drive unit 5 includes an actuator, a high-side PWM output module, and a switch output module. The output end of the high-side PWM output module is connected with the first input end of the execution mechanism, the input end of the high-side PWM output module is connected with the PWM output end of the MCU, the output end of the switch output module is connected with the second input end of the execution mechanism, and the input end of the switch output module is connected with the switch output end of the MCU.
The power management module, the standby lithium battery, the sensor power supply module and a system power supply module outside the controller jointly form a power supply unit of the intelligent network connection control system, system power supply (which can be a lead-acid storage battery, a lithium battery or a power supply device such as a DC-DC converter) is connected with the power management module inside the controller, and the power management module has high-voltage and low-voltage protection and automatic standby and dormancy functions and supplies power for the MCU; the standby lithium battery is connected with the power management module in the controller, provides a working power supply when the power supply of the system is stopped, is used for storing important data and sending system positioning and real-time state data to the management platform at regular time, and is converted into a charging state when the external power supply works; the sensor power supply module provides a stable direct current power supply for the operation switch signal acquisition module and the sensor signal acquisition module outside the system, and the dual-power design can effectively protect the working stability and the information storage safety of the system.
An industrial vehicle intelligent networking controller, as shown in fig. 3, comprises: the control unit 3, the power management module, the sensor power supply module, the standby lithium battery and the switch K1, the switch K2, the switch K3, the network communication module, the WIFI communication module, the high-side PWM output module and the switch output module, the second end of the switch K1 is connected with the input end of the power management module, the first end of the switch K2 is connected with the input end of the standby lithium battery, the second end of the switch K2 is connected with the first power supply output end of the power management module, the first end of the switch K3 is connected with the output end of the standby lithium battery, the second end of the switch K3 is connected with the standby input end of the power management module, the second power supply output end of the power management module is connected with the input end of the sensor power supply module, the third power supply output end of the power management module is connected with the power supply input end of the control unit 3, the input end of the network communication module is bidirectionally connected with the network output end of the control unit 3, the input end of the WIFI communication module is bidirectionally connected with the WIFI output end of the control unit 3, the input end of the high-side PWM output module is connected with the PWM output end of the control unit 3, and the input end of the switch output module is connected with the switch output end of the control unit 3.
The debugging/configuration module and the MCU adopt SPI (Serial Peripheral interface) communication for MCU software debugging and system configuration.
The operation switch signal collected by the operation switch signal collection module mainly comprises switching value input signals (such as driving direction, seat pressure, driving brake and operation valve rod action of a working device) which reflect various operation actions in the control system, the sensor signal collected by the sensor signal collection module mainly comprises analog input signals (such as accelerator pedal angle, driving speed, hydraulic system working pressure, steering wheel angle, lifting height of the working device, inclination angle and the like) which reflect the operation actions in the control system, and the two signals are collected through the switching value input module, the frequency input module, the first voltage input module (0-32V) and the second voltage input module (0-10V) in the controller and then input into the digital input module and the A/D converter in the MCU for digital signal conversion. The instrument and the motor controller collect key information such as operating parameters and faults of the electric control system of the whole vehicle, and the information is transmitted to the interface controller of the MCU through the CAN bus network and the driving controller in the intelligent networking controller 6.
The MCU receives and processes the signals input by the information acquisition unit 2, performs logic operation according to a program and an algorithm preset by software, and sends a control instruction to perform function control on an external control system. The control of the distributed control system equipment is realized through an interface controller of the MCU, a drive controller of the control unit 3 and an external CAN bus network; the control of the actuator is realized by driving the actuator (mechanical and electronic integrated control components such as a shift control valve, a brake valve, and a hydraulic and electric proportional valve) through an output control unit of the MCU, a high-side PWM output module and a switch output module of the control unit 3. The MCU receives and processes the information and the electric signal and sends the information and the electric signal to the encryption chip through the SPI, and the encryption chip uniformly converts the information into 0/1 binary signals; inserting 0/1 a plurality of different positions in the converted binary signal, changing the insertion position of the binary signal by the encryption chip after a cycle period, and recording the positions of the insertion 0/1 at different times by the encryption chip; the encryption chip marks and distinguishes binary signals with different time by adding time in front; converting the binary signals after the time is added into hexadecimal signals, and storing the hexadecimal signals in an external storage module; and the MCU decrypts the information in the external storage module and only needs to reversely deduce the steps. This ensures the security of the information.
Data collected by the MCU in the information collection unit 3 and the driving unit 5 and control instruction information sent by the MCU are encrypted by the encryption chip and then stored in the external module, and meanwhile, the MCU reads the encrypted data in the external storage module and sends the encrypted data to the management platform through the network communication module or the WIFI communication module; the network communication module supports a 4G \5G communication network, the WIFI communication module and the network communication module can be switched, and any one module can be selected as a default communication module through system configuration. The management platform and the receiving control unit 3 can send monitoring information and remote control instructions, and the intelligent network controller 6 can realize remote control of execution and post and bus network equipment.
The system integrates the functional modules of information acquisition, data storage, data encryption, drive control, network communication, bus communication and the like, acquires the information transmitted by each control unit of the car networking control system, uniformly stores, encapsulates and encrypts the information in the intelligent networking controller, and transmits the information to the background for monitoring and management through the wireless communication module in the controller, so that the accuracy and the safety of information transmission of the intelligent networking controller and the car networking background are effectively guaranteed, and the working stability and the information storage safety of the system can be effectively protected by adopting a dual-power design.
It should be understood that the examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (9)
1. The utility model provides an industrial vehicle intelligence networking remote monitering system which characterized in that includes:
the power supply unit supplies power to the whole remote monitoring system, and when the power supply system fails, the power supply unit can be switched to a standby power supply and check the integrity of transmitted data;
the information acquisition unit is used for sending acquired switching value input signals, sensor signals and key information such as operating parameters and faults of the electric control system to the intelligent network connection controller;
the control unit processes the received data information through the MCU and sends a control instruction to perform function control on an external control system;
the remote monitoring unit is used for receiving monitoring information sent by the intelligent network connection controller and sending a remote control instruction;
and the driving unit is used for controlling the equipment and the executing mechanism of the distributed control system.
2. The intelligent networking remote monitoring system for industrial vehicles as claimed in claim 1, wherein the power supply unit comprises a system power supply module, a power management module, a sensor power supply module, a spare lithium battery and a switch K1, a switch K2, a switch K3 and a switch K4;
a switch K1 is arranged between the system power supply module and the power management module, the first end of the switch K1 is connected with the power supply output end of the system power supply module, the second end of the switch K1 is connected with the input end of the power management module, and the input end of the power management module is provided with a voltage detector;
a switch K2 and a switch K3 are installed between the standby lithium battery and the power management module, the first end of the switch K2 is connected with the input end of the standby lithium battery, the second end of the switch K2 is connected with the first power supply output end of the power management module, the first end of the switch K3 is connected with the output end of the standby lithium battery, the second end of the switch K3 is connected with the standby input end of the power management module, when the standby lithium battery is in a charging state, the switch K2 is connected, the switch K3 is disconnected, when the standby lithium battery is in a power supply state, the switch K2 is disconnected, and the switch K3 is connected;
the power supply output end II of the power supply management module is connected with the input end of the sensor power supply module, the power supply output end III of the power supply management module is connected with the power supply input end of the MCU, and an energy storage unit is arranged in the power supply management module;
a switch K4 is arranged between the system power supply module and the information acquisition module, a first end of a switch K4 is connected with the output end of the sensor of the system power supply module, and a second end of a switch K4 is connected with a second power supply input end of the information acquisition module;
the output end of the sensor power supply module is connected with the first power supply input end of the information acquisition module.
3. The industrial vehicle intelligent networking remote monitoring system according to claim 1, wherein the control unit comprises a debugging/configuration module, a driving controller, a single-chip microcomputer MCU, a crypto chip and an external storage module, the output end of the debugging/configuration module is bidirectionally connected with the debugging input end of the single-chip microcomputer MCU, the output end of the driving controller is connected with the input end of an interface controller of the single-chip microcomputer MCU, the information output end of the single-chip microcomputer MCU is connected with the input end of the crypto chip, the output end of the crypto chip is connected with the input end of the external storage module, and the output end of the external storage module is connected with the information input end of the single-chip microcomputer MCU.
4. The intelligent networking remote monitoring system for industrial vehicles according to claim 2 or 3, characterized in that the adopted main and standby power switching method comprises the following steps:
when the system power supply module supplies power, the switch K1 is switched on, 32V voltage is output to the power management module, the power management module outputs 3.3V voltage to the MCU and 9V voltage to the sensor, and the switch four-switch system power supply module transmits 9V voltage to the sensor signal acquisition module;
when a voltage detector in the power management module detects that the voltage of the input end of the power management module is 30-35V, an electric signal is sent to the MCU to control the switch K2 to be switched on and the switch K3 to be switched off, and the power management module outputs 32V to charge a standby lithium battery;
when the system power supply module is in fault power failure, the voltage detector cannot detect the voltage or the voltage is less than 9V, the energy storage unit supplies power to the system, the power management module sends an electric signal to the MCU, the MCU disconnects the switch K1, the switch K2 and the switch K4, switches on the switch K3, and the standby battery is converted into a power supply state to supply power to the system;
when the power supply module of the system fails and is powered off, the data is not stored in the external storage module, so that the data is lost, and the MCU receives the pulse signal during the power off and re-collects and recovers the lost data during the power off;
when the system data is transmitted to the external storage module, the data is lost or lost when power is off due to faults in the process of transmitting the system data to the external storage module, the external storage module does not receive the data and does not transmit a confirmation electric signal to the MCU, the MCU repeatedly transmits the data transmitted last time if the external storage module does not receive the confirmation electric signal within a certain time of transmitting the data to the external storage module, the next time of data retransmission is performed if the external storage module receives the confirmation electric signal, the external storage module checks the length of the received data, and if the data is lost or the length is smaller than the storage length, the external storage module abandons the stored data and does not transmit the confirmation electric signal to the MCU.
5. The intelligent networking remote monitoring system for industrial vehicles according to claim 2, wherein the information acquisition unit comprises an operation switch signal acquisition module, a sensor signal acquisition module, a meter, a motor controller, a motor and a CAN bus network, wherein the input end of the operation switch signal acquisition module is connected with the output end of a sensor power supply module, the output end of the operation switch signal acquisition module is connected with the switching value input end of an MCU, the first input end of the sensor signal acquisition module is connected with the output end of the sensor power supply module, the second input end of the sensor signal acquisition module is connected with the second end of an off-hook K4, the first output end of the sensor signal acquisition module is connected with the frequency input end of the MCU, the second output end of the sensor signal acquisition module is connected with the first voltage input end of the MCU, the output end III of the sensor signal acquisition module is connected with the voltage input end II of the MCU, the output end of the instrument is bidirectionally connected with the input end of the CAN bus network, the output end of the motor controller is bidirectionally connected with the input end of the CAN bus network, the input end of the motor controller is bidirectionally connected with the output end of the motor, and the output end of the CAN bus network is bidirectionally connected with the input end of the drive controller of the MCU.
6. The industrial vehicle intelligent networking remote monitoring system according to claim 1, wherein an encryption chip in the control unit encrypts and decrypts information collected in the system, and an encryption and decryption method of the encryption chip comprises the following steps:
s1: the MCU sends the information collected in the system, the hardware information of the MCU and the electric signal to the encryption chip through the SPI protocol;
s2: the encryption chip encrypts hardware information of the MCU to generate a first secret key;
s3: the encryption chip receives the information, randomly generates a character string, and adds the character string at the tail end of the data information;
s4: the encryption chip encrypts new data information through a hash function to generate primary hash encrypted data;
s5: carrying out hash encryption on the primary hash encrypted data by using a first key to generate secondary hash encrypted data;
s6: the encryption chip encrypts the storage address information of the secondary hash encrypted data in the external storage module by using the first key to generate a second key;
s7: the first key and the second key are stored in the encryption chip, and the twice hash encryption data is stored in the external storage module according to the information of the second key
S8: the decryption method comprises the steps of sending correct hardware information of the MCU to the encryption chip to obtain a second secret key, decrypting through the second secret key to obtain the storage position of data in the external storage module, and only reversely deducing the encryption process after obtaining the storage position of the data.
7. The system of claim 1, wherein the remote monitoring unit comprises a management platform, a network communication module and a WIFI communication module, a first output end of the management platform is connected with an output end of the network communication module in a bidirectional mode, an input end of the network communication module is connected with a network output end of the MCU in a bidirectional mode, a second output end of the management platform is connected with an output end of the WIFI communication module in a bidirectional mode, and an input end of the WIFI communication module is connected with a WIFI output end of the MCU in a bidirectional mode.
8. The intelligent networking remote monitoring system for industrial vehicles according to claim 1, wherein the driving unit comprises an actuator, a high-side PWM output module and a switch output module, an output end of the high-side PWM output module is connected with an input end of the actuator, an input end of the high-side PWM output module is connected with a PWM output end of the MCU, an output end of the switch output module is connected with an input end of the actuator, and an input end of the switch output module is connected with a switch output end of the MCU.
9. An industrial vehicle intelligent networking controller according to claim 2 or 3 or 5 or 7 or 8 of an industrial vehicle intelligent networking remote monitoring system, comprising: the control unit, the power management module, the sensor power supply module, the standby lithium battery, a switch K1, a switch K2, a switch K3, a network communication module, a WIFI communication module, a high-side PWM output module and a switch output module, wherein the second end of the switch K1 is connected with the input end of the power management module, the first end of the switch K2 is connected with the input end of the standby lithium battery, the second end of the switch K2 is connected with the power supply output end of the power management module, the first end of the switch K3 is connected with the output end of the standby lithium battery, the second end of the switch K3 is connected with the standby input end of the power management module, the second power supply output end of the power management module is connected with the input end of the sensor power supply module, the third power supply output end of the power management module is connected with the power supply input end of the control unit, and the input end of the network communication module is bidirectionally connected with the network output end of the control unit, the WIFI communication module input with the WIFI output of the control unit both way junction, the high side PWM output module input be connected with the PWM output of the control unit, the switch output module input with the control unit's switch output connect.
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