Universal control host with integrated functions

Abstract

The invention discloses a universal control host with integrated functions, and relates to the field of vehicle upload control. The host comprises a host module, a general control module and an information recording module; the host module is used for sending a working signal to the general control module and sending a data acquisition signal to the information recording module according to the received instruction content; the universal control module is used for controlling the corresponding execution unit to work through a signal channel required by the execution unit corresponding to the working signal sent by the host module; the information recording module is used for acquiring data corresponding to the data acquisition signal from the host module and / or the general control module and storing the data; and transmitting corresponding data according to the received instruction content. The universal control module can provide various signal acquisition channels, so that execution units with different functions can be driven, scattered controllers are gathered, the structure of a control host is simplified, and the integration level and universality are improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle upper body control, and in particular to a universal control host with integrated functions. Background Art

[0002] Engineering machinery vehicles or special vehicles use distributed controllers to automatically or semi-automatically complete actions such as deployment and recovery.

[0003] As vehicle functions increase (such as fault diagnosis and operational management), the number of corresponding controllers is also increasing. However, a large number of controllers with single functions suffer from complex structure, low integration, and poor versatility. Furthermore, as auxiliary functions, fault diagnosis, and health management features become more and more diverse, the number of stand-alone products with specific functions is increasing, exacerbating the problem of fragmented design. Summary of the Invention

[0004] In view of the defects in the prior art, the technical problem solved by the present invention is: to solve the problems of complex control system structure, decentralized design, low integration and poor versatility in the prior art by using a universal control host with integrated functions.

[0005] To achieve the above objectives, in a first aspect, an embodiment of the present application provides a universal control host, which includes a host module, a universal control module and an information recording module; The host module is used to: send working signals to the general control module and send data acquisition signals to the information recording module according to the received instruction content; The universal control module is used to control the operation of the corresponding execution unit through the signal channel required by the execution unit corresponding to the working signal sent by the host module. The signal types provided by the universal control module include: PWM signal, analog signal and digital signal; analog signal includes analog voltage input signal and analog current input signal, and digital signal includes digital input signal and digital output signal; The information recording module is used to: collect and store data corresponding to the data acquisition signal to the host module and / or the universal control module; and transmit the corresponding data according to the received instruction content.

[0006] In combination with the first aspect, in one embodiment, the host module includes control software and a display screen, and the control software has a BIT function.

[0007] In conjunction with the first aspect, in one embodiment, the workflow of the host module implementing the BIT function includes: Monitor communication node information, including software version number, product code, cumulative operating time, alarm status information, power distribution output status, and output voltage and current; form and store historical status information based on the communication node information; compare the current status information with the corresponding historical status information, and determine the equipment operating status based on the comparison results.

[0008] In conjunction with the first aspect, in one embodiment, the workflow of the host module implementing the BIT function on the universal control module includes: By comparing the status word of the analog input port of the universal control module and the current signal value to see if they are within the normal range, the analog sensor can be determined to be online, offline or short-circuited. By comparing the status of the digital input port of the universal control module to see if it is normal, the digital sensor can be determined to be online, offline or short-circuited. The universal control module outputs DO and PWM to the corresponding execution object according to the set amount, and at the same time collects the load current of the corresponding channel. By comparing the actual load current with the current reference value, it determines whether the control loop of the execution object is faulty.

[0009] In conjunction with the first aspect, in one embodiment, the workflow of the information recording module includes: Collecting data: The host module sends a data collection instruction to the information recording module. After the information recording module is powered on, it starts to collect data corresponding to the data collection instruction and stores the collected data; Stop collecting data: The host module sends a stop command to the information recording module, and the information recording module stops collecting the corresponding data and ends data transmission.

[0010] In combination with the first aspect, in one embodiment, the host further includes a network switching module, the information recording module communicates with the host module through the network switching module, and both the host module and the information recording module communicate with the outside through the network switching module.

[0011] In combination with the first aspect, in one embodiment, each universal control module provides 16 +28V switch inputs, 16 +28V voltage outputs; 16 4~20mA analog current signal inputs; 16 analog voltage inputs; and 16 PWM outputs.

[0012] In combination with the first aspect, in one embodiment, the host further includes a power supply module, which is used to supply power to the host module, the general control module, the information recording module and the network switching module.

[0013] In combination with the first aspect, in one embodiment, the rated supply voltage of the power module is 28VDC, and the variation range is +18VDC to +36VDC; the power module is used to: convert the wide-range input voltage into a rated voltage within the rated variation range and then provide power.

[0014] In combination with the first aspect, in one embodiment, the host further includes a host chassis having internal and external CAN bus interfaces, supporting CAN2.0A and CAN2.0B protocols, and a baud rate of not less than 1000 kbps.

[0015] Compared with the prior art, the advantages of the present invention are: Compared with the controller with a single function in the prior art, the universal control module of the present application can provide multiple signal acquisition channels, so as to drive execution units with different functions (such as proportional valves, multi-way valves, sensors, etc.), that is, the universal control module of the present application can integrate multiple controllers in the prior art, thereby gathering the scattered controllers, simplifying the structure of the control host, and improving the integration and versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a structural block diagram of a universal control host with integrated functions in the embodiment of the present application; Figure 2 This is a block diagram of the principles of data collection and recording in the embodiment of this application. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, combined, or partially merged, so the actual execution order may vary depending on the actual situation.

[0020] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0021] First, see Figure 1 As shown, an embodiment of the present application provides a universal control host, which includes a host module, a universal control module and an information recording module.

[0022] The host module is used to: send working signals to the general control module through the CAN bus according to the received instruction content (sent by the host computer, the host module is used to interact with the host computer through the external Ethernet network); send data acquisition signals to the information recording module through the CAN bus; The universal control module is used to control the operation of the corresponding execution unit (such as a proportional valve, multi-way valve, different types of sensors, etc.) through the signal channel required by the execution unit corresponding to the working signal sent by the host module. The signal types provided by the universal control module include: PWM signal (Pulse Width Modulation, pulse width modulation signal), analog signal (AI) and digital signal; analog signals include analog voltage input signals and analog current input signals, and digital signals include digital input signals (DI) and digital output signals (DO).

[0023] The information recording module is used to: collect and store data corresponding to the data acquisition signal to the host module and / or the general control module; and transmit the corresponding data according to the received instruction content (sent by the host computer).

[0024] It can be seen from this that compared with the single-function controller in the prior art, the universal control module of the present application can provide multiple signal acquisition channels, so as to drive execution units with different functions (such as proportional valves, multi-way valves, sensors, etc.), that is, the universal control module of the present application can integrate multiple controllers in the prior art, thereby gathering the scattered controllers, simplifying the structure of the control host, and improving the integration and versatility.

[0025] In one embodiment, the host module includes a controller and a display screen; the display screen serves as an interface display terminal for human-computer interaction and provides a touch screen function; the host module runs the control software in real time, receives control instructions from the host computer and returns system status information, completes control processing and information display of the lower execution unit, and stores control process log information.

[0026] On this basis, The control software has a BIT function (Built-In Test, an embedded system built-in self-test, an automated fault detection technology integrated into the system, mainly used for hardware status monitoring and fault diagnosis); the industrial controller runs data analysis software to export, parse, and display information stored in the information recording module.

[0027] Specifically, the host module implements the BIT function by obtaining status information, comparing and analyzing actual values ​​with normal values, and performing system BIT diagnosis. The specific workflow includes: Monitor communication node information, including software version number, product code, cumulative operating time, alarm status information (overvoltage, undervoltage, overtemperature, overcurrent, short circuit, and other fault information), power distribution output status, output voltage and current, etc. Generate historical status information (obtained through collating, analyzing, and summarizing communication node information) based on communication node information and store it; During self-test, the current status information is compared with the corresponding historical status information, and the device operating status (whether it is stable) is determined based on the comparison results; For Universal Control Modules: By comparing the status word of the analog input port of the universal control module and the current signal value to see if they are within the normal range, the analog sensor can be determined to be online, offline or short-circuited. By comparing the status of the digital input port of the universal control module to see if it is normal, the digital sensor can be determined to be online, offline or short-circuited. In the initial state, the universal control module outputs DO and PWM to the corresponding execution object according to the set amount, and at the same time collects the load current of the corresponding channel. By comparing the actual load current with the current reference value, it determines whether the control loop of the execution object is faulty (such as short circuit).

[0028] In one embodiment, see Figure 1 and Figure 2 As shown, the workflow of the above information recording module includes: Collecting data: The host module sends a data collection instruction (start instruction in the figure) to the information recording module. After the information recording module is powered on, it starts to collect data corresponding to the data collection instruction (external data, generally Figure 1 The control unit in the figure stores the collected data (the process of collecting, receiving, and determining the existence of data in the figure will be carried out).

[0029] Stop collecting data: The host module sends a stop command to the information recording module, and the information recording module stops collecting the corresponding data and ends data transmission.

[0030] In one embodiment, each universal control module provides 16-channel +28V switch inputs, 16-channel +28V voltage outputs (load current not less than 2A); 16-channel 4~20mA analog current signal inputs (independent isolation channels, accuracy not less than 0.5‰); 16-channel analog voltage inputs (independent isolation channels, accuracy not less than 0.5%); 16-channel PWM outputs (output current controlled at 0~2A, state recovery and closed-loop control functions).

[0031] In one embodiment, see Figure 1 As shown, the above host also includes a network switching module, the information recording module communicates with the host module through the network switching module, and both the host module and the information recording module communicate with the outside through the network switching module.

[0032] In one embodiment, see Figure 1 As shown, the host also includes a power supply module, which is used to supply power to the host module, the general control module, the information recording module and the network switching module.

[0033] Furthermore, the rated supply voltage of the power module is 28VDC, and the variation range is +18VDC to +36VDC. The power module is used to convert the wide-range input voltage into a rated voltage within the rated variation range and then provide power.

[0034] In one embodiment, the host further comprises a host chassis having internal and external CAN bus interfaces, supporting CAN 2.0A and CAN 2.0B protocols, a baud rate of no less than 1000 kbps, user-defined protocols, and dual-path hardware redundancy for the CAN bus. Gigabit Ethernet is supported, with 100 / 1000 Mbps adaptable.

[0035] In summary, this application can achieve: 1. It integrates multiple control signals, including switch input, voltage output, analog current signal input, analog voltage input, and PWM output. It can drive proportional valves and multi-way valves and receive information from multiple types of sensors. It has strong versatility and scalability. 2. A CAN communication interface for external controller is reserved, and the functions can be developed, with servo control and CAN sensor expansion; 3. It integrates task services, integrated display, human-computer interaction, log management, system BIT diagnosis, Ethernet communication, CAN communication, data storage, data analysis, health management, execution unit drive control and other functions in one, with a highly centralized functional structure.

[0036] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit the "first", "second" and "third" to different types.

[0037] In the description of the embodiments of this application, the words "exemplary," "for example," or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary," "for example," or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary," "for example," or "for example" is intended to present the relevant concepts in a concrete manner.

[0038] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0039] In some processes described in the embodiments of the present application, multiple operations or steps are included that appear in a specific order. However, it should be understood that these operations or steps may not be performed in the order in which they appear in the embodiments of the present application or may be performed in parallel. The sequence numbers of the operations are only used to distinguish between different operations, and the sequence numbers themselves do not represent any order of execution. In addition, these processes may include more or fewer operations, and these operations or steps may be performed in sequence or in parallel, and these operations or steps may be combined.

[0040] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, or the part that contributes to the existing technology, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above and includes a number of instructions for enabling a terminal device to execute the methods described in each embodiment of this application.

[0041] The above are only specific implementations of the embodiments of the present invention, but the scope of protection of the embodiments of the present invention is not limited to them. Any person skilled in the art can easily conceive of various equivalent modifications or replacements within the technical scope disclosed in the embodiments of the present invention, and such modifications or replacements should be included in the scope of protection of the embodiments of the present invention. Therefore, the scope of protection of the embodiments of the present invention should be based on the scope of protection of the claims.

Claims

1. A universal control host, characterized by: The host includes a host module, a general control module and an information recording module; The host module is used to: send working signals to the general control module and send data acquisition signals to the information recording module according to the received instruction content; The universal control module is used to control the operation of the corresponding execution unit through the signal channel required by the execution unit corresponding to the working signal sent by the host module; The signal types provided by the universal control module include: PWM signals, analog signals and digital signals; analog signals include analog voltage input signals and analog current input signals, and digital signals include digital input signals and digital output signals; The information recording module is used to: collect and store data corresponding to the data acquisition signal to the host module and / or the universal control module; and transmit the corresponding data according to the received instruction content.

2. The universal control host according to claim 1, characterized in that: The host module includes control software and a display screen, and the control software has a BIT function.

3. The universal control host according to claim 2, characterized in that: The workflow of the host module to implement the BIT function includes: Monitor communication node information, including software version number, product code, cumulative operating time, alarm status information, power distribution output status, and output voltage and current; form and store historical status information based on the communication node information; compare the current status information with the corresponding historical status information, and determine the equipment operating status based on the comparison results.

4. The universal control host according to claim 3, characterized in that: The workflow of the host module implementing the BIT function on the universal control module includes: By comparing the status word of the analog input port of the universal control module and the current signal value to see if they are within the normal range, the analog sensor can be determined to be online, offline or short-circuited. By comparing the status of the digital input port of the universal control module to see if it is normal, the digital sensor can be determined to be online, offline or short-circuited. The universal control module outputs DO and PWM to the corresponding execution object according to the set amount, and at the same time collects the load current of the corresponding channel. By comparing the actual load current with the current reference value, it determines whether the control loop of the execution object is faulty.

5. The universal control host according to claim 1, characterized in that: The workflow of the information recording module includes: Collecting data: The host module sends a data collection instruction to the information recording module. After the information recording module is powered on, it starts to collect data corresponding to the data collection instruction and stores the collected data; Stop collecting data: The host module sends a stop command to the information recording module, and the information recording module stops collecting the corresponding data and ends data transmission.

6. The universal control host according to claim 1, characterized in that: The host also includes a network switching module, the information recording module communicates with the host module through the network switching module, and both the host module and the information recording module communicate with the outside through the network switching module.

7. The universal control host according to any one of claims 1 to 6, characterized in that: Each universal control module provides 16-channel +28V switch inputs, 16-channel +28V voltage outputs; 16-channel 4~20mA analog current signal inputs; 16-channel analog voltage inputs; and 16-channel PWM outputs.

8. The universal control host according to any one of claims 1 to 6, characterized in that: The host also includes a power supply module, which is used to supply power to the host module, the general control module, the information recording module and the network switching module.

9. The universal control host according to claim 8, characterized in that: The rated supply voltage of the power module is 28VDC, and the variation range is +18VDC to +36VDC. The power module is used to convert the wide-range input voltage into a rated voltage within the rated variation range and then provide power.

10. The universal control host according to any one of claims 1 to 6, characterized in that: The host also includes a host chassis, which has internal and external CAN bus interfaces, supports CAN2.0A and CAN2.0B protocols, and has a baud rate of not less than 1000kbps.

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