CAN communication test simulation device for sub-components of DR complete machine system
By simulating the CAN communication of sub-components of the DR system using a simulation device, the problem of difficulty in assessing risks in existing technologies is solved, achieving efficient risk assessment and cost savings.
Patent Information
- Application Number
- CN202423295306.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing technologies make it difficult to assess the actual application risks of sub-components of the DR system in a CAN network, and the cost of purchasing the entire system is high.
Design a CAN communication test simulation device for sub-components of a DR system. The device connects the sub-component under test and the PC test terminal through multiple CAN terminals and a CAN bus to simulate the CAN communication mode of the entire system, thereby improving the accuracy of risk assessment and saving costs.
This technology enables accurate simulation of CAN communication between sub-components and the complete system without purchasing the entire system, thereby improving the accuracy of risk assessment and reducing testing costs.
Smart Images
Figure CN223566051U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to DR whole machine testing system's technical field, in particular to a kind of DR whole machine system subcomponent CAN communication test simulation device. BACKGROUND
[0002] In the medical x-ray perspective field, every set of DR whole machine system (direct digital X-ray photography system) includes multiple subcomponents connected by CAN network (Controller Area Network) communication. For example, high-voltage generator, beam limiter, support of whole machine system, high-low lifting of flat bed, back and forth movement of suspension and DAP. At present, the test of subcomponent CAN communication is mainly through computer, using PC software, to test subcomponent point-to-point, and the test content includes the function of beam limiter, the quality of communication, the response of instruction, etc. As shown in the figure, there are only two units on the CAN bus, namely the subcomponent 1 to be tested and the PC test end 4, without introducing additional communication unit, which cannot dig out the problems of subcomponent when accessing to the CAN network of multiple communication units, so it is difficult to assess the risk. If you want to restore the use of the subcomponent to be tested in the actual process, you need to purchase a complete whole machine and build a whole machine system, which is relatively expensive. Figure 1 UTILITY MODEL CONTENT
[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a DR whole machine system subcomponent CAN communication test simulation device, which can simulate the use of subcomponent in the actual process during CAN communication test of subcomponent, improve risk assessment and save cost.
[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a DR whole machine system subcomponent CAN communication test simulation device, which comprises a subcomponent to be tested, a plurality of CAN terminals, a CAN bus and a PC test end. The subcomponent to be tested and the plurality of CAN terminals are connected to the CAN bus, and the PC test end is also connected to the CAN bus.
[0005] The plurality of CAN terminals are used to simulate each CAN node on the system that can perform CAN communication. The PC test end is used to send test instructions to the subcomponent to be tested.
[0006] Optionally, the CAN terminal adopts programmable CAN terminal.
[0007] Optionally, the CAN terminal comprises a single-chip microcomputer and a CAN module. The single-chip microcomputer is used for programming and setting, and the CAN module is used for CAN communication.
[0008] Optionally, the single-chip microcomputer is VP230 single-chip microcomputer.
[0009] Optionally, two resistors are connected in parallel with the CAN bus to improve the anti-interference capability of the CAN communication.
[0010] Optionally, the two resistors are both 120 ohms.
[0011] Optionally, the CAN bus can bear the communication requirements of the to-be-tested sub-component, the plurality of CAN terminals and the PC test end, the communication requirements of the to-be-tested sub-component, each CAN terminal and the PC test end are at least one thousand communication instructions per second and at least 12 hours, and the message receiving and successful processing rate is not less than 99%.
[0012] In the DR whole machine system sub-component CAN communication test simulation device, a plurality of CAN terminals, a CAN bus and a PC test end are arranged, when the CAN communication test of the to-be-tested sub-component is needed, the plurality of CAN terminals are used to simulate each CAN node capable of CAN communication on the whole system. By communicating and connecting the to-be-tested sub-component, the plurality of CAN terminals and the PC test end on the CAN bus, and sending the test instruction of the PC test end to the to-be-tested sub-component, the CAN communication mode of the to-be-tested sub-component in the actual use process of the whole machine system can be simulated, so that the CAN communication simulation result of the to-be-tested sub-component is more accurate, and the risk assessment of the CAN communication test of the to-be-tested sub-component is improved. At the same time, when the CAN communication test of a single whole machine system sub-component is carried out, a whole set of whole machine system does not need to be purchased, and the cost is saved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is the whole structure schematic diagram of the prior art of the utility model.
[0014] Figure 2 is the structure schematic diagram of the DR whole machine system sub-component CAN communication test simulation device of one embodiment of the utility model. DETAILED DESCRIPTION
[0015] The following refers to Figure 2The utility model discloses a DR whole machine system subcomponent CAN communication test simulation device. In the description of the embodiment, it needs to be understood that the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features, that is, one or more of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, for example, two, three, etc. Unless otherwise specifically limited, when a certain feature "includes or contains" a certain or certain encompassed feature, this indicates that other features are not excluded and other features can be further included, unless otherwise specifically described.
[0016] Unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected", "fixed", "coupled" and other terms should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the utility model according to the specific circumstances.
[0017] In addition, in the description of the embodiment, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the embodiment, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" or "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0018] In the description of the embodiment, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0019] As Figure 2The utility model discloses a DR whole machine system subcomponent CAN communication test simulation device, simulation device includes the subcomponent 1 of measuring, a plurality of CAN terminal 2, CAN bus 3 and PC test end 4. The subcomponent 1 of measuring and a plurality of CAN terminal 2 are connected on CAN bus 3, and PC test end 4 also communicates with CAN bus 3 connection. A plurality of CAN terminal 2 are used to simulate each CAN node that can carry out CAN communication on the system. PC test end 4 is used to send test instruction to the subcomponent 1 of measuring.
[0020] In the embodiment of the utility model, when needing to carry out CAN communication test to the subcomponent 1 of measuring, a plurality of CAN terminal 2 are used to simulate each CAN node that can carry out CAN communication on the whole system. By communicating connection of the subcomponent 1 of measuring, a plurality of CAN terminal 2 and PC test end 4 on CAN bus 3, and using PC test end 4 to send test instruction to the subcomponent 1 of measuring, the CAN communication mode of the subcomponent 1 of measuring in the actual application process of whole machine system can be simulated, so that the CAN communication simulation result of the subcomponent 1 of measuring is more accurate, and further improve the risk assessment of CAN communication test of the subcomponent 1 of measuring. Meanwhile, when carrying out CAN communication test to single whole machine system subcomponent, a whole set of whole machine system does not need to be purchased, and cost is saved.
[0021] In some embodiments of the utility model, CAN terminal 2 adopts programmable CAN terminal.
[0022] In the embodiment of the utility model, by setting CAN terminal 2 as programmable form, when carrying out CAN communication test to the subcomponent 1 of measuring, the adaptive adjustment according to the protocol requirement of different customers can be carried out, thereby improving the compatibility of simulation device, and the application scope is wider.
[0023] In some embodiments of the utility model, CAN terminal 2 includes single-chip microcomputer and CAN module. Single-chip microcomputer is used to carry out programming setting, and CAN module is used to carry out CAN communication, and the overall structure is relatively simple. Further, single-chip microcomputer adopts VP230 single-chip microcomputer. CAN module is CAN bus 3 transceiver.
[0024] In some embodiments of the utility model, two resistors 5 are connected in parallel on CAN bus 3. Further, two resistors 5 all adopt 120 ohms.
[0025] In the embodiment of the utility model, by setting resistor 5, high-frequency low-energy signal can be filtered and eliminated, thereby improving the anti-interference ability of CAN communication.
[0026] In some embodiments of the utility model, CAN bus 3 can bear the communication requirement of the to-be-tested subcomponent 1, multiple CAN terminals 2 and PC test end 4. The communication requirement of the to-be-tested subcomponent 1, each CAN terminal 2 and PC test end 4 is to transmit at least one thousand communication instructions per second and last at least 12 hours, and the message receiving and successful processing rate should not be less than 99%.
[0027] Since on the CAN network, each CAN node can participate in the real-time communication of CAN bus 3, and timely send and receive communication. Therefore, the more CAN nodes accessed on CAN bus 3, the greater the communication pressure of CAN bus 3. In order to ensure that the CAN communication test is not affected, CAN bus 3 needs to bear the communication requirement from the to-be-tested subcomponent 1, multiple CAN terminals 2 and PC test end 4. Optionally, the communication requirement of the to-be-tested subcomponent 1, each CAN terminal 2 and PC test end 4 is to transmit one thousand communication instructions per second and can last for 12 hours. And, the message receiving and successful processing rate is higher than 99%.
[0028] The above embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.
Claims
1. A DR whole body system subcomponent CAN communication test simulation device, characterized in that, The simulation device comprises a sub-component to be tested, a plurality of CAN terminals, a CAN bus and a PC test terminal, the sub-component to be tested and the plurality of CAN terminals are connected to the CAN bus, and the PC test terminal is also connected to the CAN bus in communication. The plurality of CAN terminals are used to simulate each CAN node capable of CAN communication on a system, and the PC test terminal is used to send test instructions to the sub-component to be tested.
2. The DR engine system subcomponent CAN communication test simulation apparatus of claim 1, wherein, The CAN terminal is programmable.
3. The DR engine system subcomponent CAN communication test simulation apparatus of claim 2, wherein, The CAN terminal comprises a single-chip microcomputer and a CAN module, the single-chip microcomputer is used for programming and setting, and the CAN module is used for CAN communication.
4. The DR engine system subcomponent CAN communication test simulation apparatus of claim 3, wherein, The single-chip microcomputer is VP230.
5. The DR whole machine system subcomponent CAN communication test simulation apparatus of claim 1, wherein, Two resistors are connected in parallel to the CAN bus to improve the anti-interference capability of CAN communication.
6. The DR engine system subcomponent CAN communication test simulation apparatus of claim 5, wherein, Both of the two resistors are 120 ohms.
7. The DR whole machine system subcomponent CAN communication test simulation apparatus of claim 1, wherein, The CAN bus can bear the communication requirements of the sub-component to be tested, the plurality of CAN terminals and the PC test terminal, the communication requirements of the sub-component to be tested, each CAN terminal and the PC test terminal are at least one thousand communication instructions per second and at least 12 hours, and the message receiving and successful processing rate should not be less than 99%.