CN201540487U - Handheld operator for maintenance and detection of equipment in marine engine room - Google Patents
Handheld operator for maintenance and detection of equipment in marine engine room Download PDFInfo
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- CN201540487U CN201540487U CN2009202145349U CN200920214534U CN201540487U CN 201540487 U CN201540487 U CN 201540487U CN 2009202145349 U CN2009202145349 U CN 2009202145349U CN 200920214534 U CN200920214534 U CN 200920214534U CN 201540487 U CN201540487 U CN 201540487U
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Abstract
The utility model relates to a handheld operator for maintenance and detection of equipment in a marine engine room, and the handheld operator is characterized in that a casing and a detection circuit are included, and a display screen and a function key are arranged on the casing; the detection circuit includes a CPU microprocessor, a CAN net communication circuit connected with the CPU microprocessor, an Ethernet communication circuit, an RS 485/RS 422 serial port communication circuit, an SD card read/write circuit, a key-press input circuit, a display circuit and an embedded processing circuit embedded in the CPU microprocessor, and further includes a power circuit enabling the operation of the CPU microprocessor and the circuits; the embedded processing circuit includes a data acquiring module, a data analyzing module, a data processing module, and a data sending module sending data to an upper computer through the CAN net communication circuit, the Ethernet communication circuit, the RS 485/ RS 422 serial port communication circuit; and an output terminal of the data sending module is electrically connected with the SD read/write circuit; and an output terminal of the display circuit is electrically connected with the display screen. The handheld operator has the advantages of small volume, high integration, low power consumption, good stability, simple operation and convenient carrying.
Description
Technical field
The utility model relates to a kind of hand-held watercraft cabinet equipment and safeguards the detecting operation device.
Background technology
Networking, intellectuality, informationalized improving constantly along with engine room facilities, the cabin supervisory system becomes increasingly complex, maintenance, maintenance and localization of fault at each watch-dog and network system just become very difficult, and be also more and more higher to site operation personnel's technical requirement.The present main status data by external specialized equipment and notebook computer and additional related special software on-line analysis equipment and network to the debugging of field apparatus and localization of fault, portability, specific aim and ease for operation are all very poor, and owing to must use special-purpose checkout equipment and software, user of service's quality also there is very high requirement.So in the existing project of having used, the developer must debug to the scene in person, must increase the manpower and materials input like this.
Summary of the invention
The utility model is that a kind of hand-held watercraft cabinet equipment that provides for the above problem that solves the prior art existence is safeguarded the detecting operation device.This hand-held watercraft cabinet equipment safeguards that the detecting operation device is the hand-held human-computer interaction device, 32 bit processors based on the ARM7 kernel are the control core, have liquid crystal display, data card interface and communication bus interface etc., having high-performance, low-power consumption, low cost, easy-operating characteristics, is a portable embedded computer system.It is simple to operate, easy to carry, can help the field staff to implement accurately locating fast, overhauling and auxiliary patrolling and examining fault on the spot; Can reduce technical requirement greatly, improve the quick-reaction capability (QRC) of fault handling, raise the efficiency, reduce the input of manpower and materials the site operation personnel.
In order to realize above purpose, the technical scheme that the utility model is taked is: the hand-held watercraft cabinet equipment is safeguarded the detecting operation device, be characterized in that comprise the hand-held housing and be arranged on the interior testing circuit of housing, described housing is provided with display screen and function button; Described testing circuit comprises: the CPU microprocessor, the CAN Netcom news circuit, Ethernet communication circuit, RS485/RS422 serial communication circuit, SD card read/write circuit, button inputting circuits, the display circuit that are connected with the CPU microprocessor, and the embedded processing circuit that is embedded in the CPU microprocessor, also comprise the power circuit that CPU microprocessor and foregoing circuit work are provided; Described embedded processing circuit comprises: the data acquisition module that is used for the acquisition testing data that is electrically connected with the output terminal of button inputting circuits; The data that are used for being gathered that are electrically connected with the output terminal of data acquisition module are carried out the data resolution module of analyzing and processing; The data processing module that being used for of being electrically connected with the output terminal of data resolution module handled the data of data analysis module output; And, the data transmission blocks that is used for handled data are sent to by CAN Netcom news circuit, Ethernet communication circuit, RS485/RS422 serial communication circuit host computer that is electrically connected with the output terminal of data processing module; The output terminal of this data transmission blocks also is electrically connected with described read/write circuit; The output terminal of described display circuit is electrically connected with display screen.
Above-mentioned hand-held watercraft cabinet equipment is safeguarded the detecting operation device, wherein, described data acquisition module comprises: with the two-way CAN bus data acquisition unit that is electrically connected of CAN bus, with the two-way Ethernet data collecting unit that is electrically connected of industry ethernet and with the two-way serial data collection unit that is electrically connected of RS485/RS422 serial ports; Wherein: described CAN bus data acquisition unit comprises CAN bus data acquisition unit subelement, the reception data buffer unit that is electrically connected with the output terminal of CAN bus data acquisition subelement; Described CAN bus data acquisition unit receives image data by the CAN bus; Described reception data buffer unit is connected with described data resolution module is two-way; Described Ethernet data collecting unit comprises the buffer cell that Ethernet data is gathered subelement and gathered the data query unit that subelement is electrically connected and the judging unit that is electrically connected with the output terminal of data query unit, is electrically connected with judging unit with Ethernet data; Described Ethernet data is gathered subelement and is received image data by industry ethernet; Described buffer cell is connected with described data resolution module is two-way; Described serial data collection unit comprises serial data collection subelement, the timing query unit that is electrically connected with this serial data collection subelement, the judging unit that is electrically connected with this timing query unit, the serial received cache register that is electrically connected with this judging unit; Described serial data collection subelement receives image data by the RS485/RS422 serial ports; Described serial received cache register is connected with data resolution module is two-way with described.
Above-mentioned hand-held watercraft cabinet equipment is safeguarded the detecting operation device, wherein, described data resolution module comprises CAN bus data resolution unit, Ethernet data resolution unit, serial data resolution unit, and wherein: described CAN bus data resolution unit comprises the filtering of CAN message, CAN message error-detecting; Described Ethernet data resolution unit comprises ARP Packet Filtering, ICMP Packet Filtering and UDP message packet filtering; Described serial data resolution unit comprises according to specifying serial port protocol to resolve the serial data that receives.
Above-mentioned hand-held watercraft cabinet equipment is safeguarded the detecting operation device, wherein, described data processing module is used for data processing that the packet that receives is correlated with, comprises the request of data unit, data response unit, state transmitting element, data retrieval unit and the computing unit that are linked in sequence.
Above-mentioned hand-held watercraft cabinet equipment is safeguarded the detecting operation device, and wherein, described data outputting module comprises: the data transmission unit that the CAN data send, Ethernet data sends and serial data sends.
Above-mentioned hand-held watercraft cabinet equipment is safeguarded the detecting operation device, and wherein, described power circuit comprises outer for 24V power supply and dry cell power supply two parts.
Above-mentioned hand-held watercraft cabinet equipment is safeguarded the detecting operation device, and wherein, described CAN Netcom news circuit adopts the two-way CAN bus redundancy communication, and the CAN2.0 agreement of expansion structure is adopted in the CAN communication.
Above-mentioned hand-held watercraft cabinet equipment is safeguarded the detecting operation device, and wherein, described Ethernet communication circuit is based on the UDP communications protocol.
Above-mentioned hand-held watercraft cabinet equipment is safeguarded the detecting operation device, and wherein, described SD card read/write circuit is undertaken alternately by spi bus and CPU microprocessor, realizes data write.
Above-mentioned hand-held watercraft cabinet equipment is safeguarded the detecting operation device, and wherein, described CPU microprocessor adopts the 32-bit microprocessor based on the ARM7 kernel of supporting real-time simulation and high speed Flash storer tracking and that have embedding.
The utility model is owing to adopted above technical scheme, and the technique effect of its generation is tangible:
1, safeguards that based on the hand-held watercraft cabinet equipment of ARM7 kernel the detecting operation utensil has that volume is little, integrated level is high, low in energy consumption, characteristics such as stability is good.
2, this hand-held watercraft cabinet equipment safeguards that the detecting operation device can realize functions such as CAN Netcom news, ethernet communication, RS485/RS422 serial communication, the read-write of SD card, data presentation.Can monitor the communication data of CAN network or Ethernet transmission, parsing, fault diagnosis etc.; Can also send data to target device by CAN net or Ethernet; The data storage that received at the SD card, also can be read once more and analyzes depositing historical data in the SD card in.Satisfy field personnel's debugging demand, improved work efficiency.
3, this hand-held watercraft cabinet equipment safeguards that the detecting operation device is simple to operate, easy to carry, can help the field staff to implement accurately locating fast, overhauling and auxiliary patrolling and examining fault on the spot; Can reduce technical requirement greatly, improve the quick-reaction capability (QRC) of fault handling, raise the efficiency, reduce the input of manpower and materials the site operation personnel.
Description of drawings
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is a contour structures synoptic diagram of the present utility model.
Fig. 2 is the electrical block diagram of testing circuit of the present utility model.
Fig. 3 is the concrete electrical block diagram of embedded processing circuit in the testing circuit of the present utility model.
Embodiment
See also Fig. 1, Fig. 1 is a contour structures synoptic diagram of the present utility model.The utility model hand-held watercraft cabinet equipment is safeguarded the detecting operation device, comprises hand-held housing 1 and is arranged on the interior testing circuit 2 of housing, and described housing is provided with display screen 3 and function button 4.Described button 4 comprise " on " function button such as key 41, D score key 42, " left side " key 43, " right side " key 44, " determining " key 45, " cancellation " key 46, " menu " key 47, be electrically connected with testing circuit, also comprise power button 48, be connected with power supply.
See also Fig. 2, Fig. 2 is the electrical block diagram of testing circuit of the present utility model.Testing circuit 2 described in the utility model comprises: CPU microprocessor 21, the CAN Netcom news circuit 22, Ethernet communication circuit 23, RS485/RS422 serial communication circuit 24, SD card read/write circuit 25, button inputting circuits 26, the display circuit 27 that are connected with the CPU microprocessor, and the embedded processing circuit 28 that is embedded in the CPU microprocessor, also comprise the power circuit 29 that CPU microprocessor and foregoing circuit work are provided.Wherein:
Described power circuit 29 comprises outer for 24V power supply and dry cell (4 joints, every joint supply voltage is 1.5V) power supply two parts, can satisfy the requirement that the hand-held watercraft cabinet equipment is safeguarded detecting operation device portability.Power supply can adopt power supply chip conversion, has guaranteed the stability of each circuit supply; The design that also can adopt digital power to isolate in the power supply has improved the degree of stability of signal transformation, output and conversion greatly.
Described CAN Netcom news circuit 22 and 100 two-way connections of CAN bus have been realized 2 road CAN bus redundancy communications, and the agreement of the CAN2.0 (29) of CAN communication employing expansion structure can realize functions such as the reception of CAN bus data, transmission, fault diagnosis.
Ethernet communication circuit 23 and 200 two-way connections of industry ethernet realize 1 road industry ethernet communication, and based on the UDP communications protocol.Can receive and send Ethernet data, recognition data stream type, judge the flow direction of control data stream automatically.On-the site analysis network blockage and fault, raising network transfer speeds are played an important role.
RS485/RS422 serial communication circuit 24 and 300 two-way connections of serial data can carry out the reception and the transmission of serial data, and serial data is carried out Monitoring and Controlling.Substantially satisfy the requirement of on-the-spot AccessPort.The utility model RS485/RS422 serial communication circuit has adopted the full-duplex transceiver of SP3491 series+3.3V low-power consumption, and they satisfy the requirement of RS-485 and RS-422 serial protocol fully.SP3491 is formed by the BiCMOS technology manufacturing of Sipex, can realize low power consumption operation, but performance is unaffected.They meet the electrical code of RS-485 and RS-422 serial protocol, and message transmission rate can be up to 10Mbps (bringing onto load).SP3491 has increased driver and receiver three-state enable line.SP3491 has ± the receiver input sensitivity of 200mV, can with the logical circuit co-operation of+5V.It has-7V～+ common-mode input voltage range of 12V and allow on same universal serial bus, to connect 32 transceivers.
The output terminal of SD card read/write circuit 25 is connected with read-write card 5.Described SD card read/write circuit 25 is undertaken alternately by spi bus and CPU module, realizes data write.SPI is the serial line interface of a full duplex, and it can handle the main frame and the slave of a plurality of interconnection on a given bus.In certain data transmission procedure, can only there be a main frame can communicate by letter on the interface with a slave.In a data transfer, main frame always sends own data to slave, and slave also always sends a byte data to main frame.At present, SPI maximum data bit rate is 1/8 of an input clock speed, and the maximum read-write of the SD card degree of depth is 8G, also can read file directory and file attribute except that can read file content.
The CPU microprocessor used support real-time simulation and tracking based on 32 ARM7 microprocessor LPC2292, and have the high speed Flash storer that 256k byte (kB) embeds.The memory interface of 128 bit widths and unique accelerating structure can move 32 codes under maximum clock speed.Have the application of strict control can use 16 Thumb patterns that code size is reduced to code size and surpass 30%, and the loss of performance is very little.Use this CPU to improve arithmetic speed greatly, can reach the dominant frequency of 60MHZ through frequency hopping.Because hardware resource is abundant, guaranteed the sophisticated functions of process software, as the smooth realization of functions such as digital filtering, communication diagnosis, fault output, protocol conversion.
See also Fig. 3, Fig. 3 is the concrete electrical block diagram of embedded processing circuit in the testing circuit of the present utility model.Described embedded processing circuit 28 comprises: the data acquisition module that is used for the acquisition testing data 281 that is electrically connected with the output terminal of button inputting circuits; The data that are used for being gathered that are electrically connected with the output terminal of data acquisition module are carried out the data resolution module 282 of analyzing and processing; The data processing module 283 that being used for of being electrically connected with the output terminal of data resolution module handled the data of data analysis module output; And, the data transmission blocks 284 that is used for handled data are sent to by CAN Netcom news circuit, Ethernet communication circuit, RS485/RS422 serial communication circuit host computer that is electrically connected with the output terminal of data processing module; The output terminal of this data transmission blocks also is electrically connected with described SD card read/write circuit 25; The output terminal of described display circuit 27 is electrically connected with display screen 3.
Wherein:
Described CAN bus data acquisition unit 2811 comprises CAN bus data acquisition unit subelement 28111, the reception data buffer unit 28112 that is electrically connected with the output terminal of CAN bus data acquisition subelement; Image data is received by CAN bus interface 100 in described CAN bus data acquisition unit; Described reception data buffer unit and described 282 two-way connections of data resolution module.Receive the CAN bus data by interrupt mode, when receiving the CAN bus data, CPU can produce interruption, and the CAN bus data is deposited in the reception data buffer.
Described Ethernet data collecting unit 2812 comprises the buffer cell 28124 that Ethernet data is gathered subelement 28121 and gathered the data query unit 28122 that subelement is electrically connected and the judging unit 28123 that is electrically connected with the output terminal of data query unit, is electrically connected with judging unit with Ethernet data; Described Ethernet data is gathered subelement and is received image data by industry ethernet 200; Described buffer cell and described 282 two-way connections of data resolution module.By whether regularly inquiring about the Ethernet send buffer has data, if the buffer zone non-NULL then receives this buffer data.
Described serial data collection unit 2813 comprises serial data collection subelement 28131, the timing query unit 28132 that is electrically connected with this serial data collection subelement, the judging unit 28133 that is electrically connected with this timing query unit, the serial received cache register 28134 that is electrically connected with this judging unit; Described serial data collection subelement 28131 receives image data by RS485/RS422 serial ports 300; Described serial received cache register and described and 282 two-way connections of data resolution module.Whether regularly inquiring about the serial received cache register has data, if there are data that it is read.
The utility model hand-held watercraft cabinet equipment is safeguarded the detecting operation device, can monitor the communication data of CAN network or Ethernet transmission, parsing, fault diagnosis etc.; Can also send data to target device by CAN net or Ethernet; The data storage that received at the SD card, also can be read once more and analyzes depositing historical data in the SD card in.Satisfy field personnel's debugging demand, improved work efficiency.
One, adopt the dual CAN bus communication:
The CAN channel transmission data of embedded type CPU microprocessor by carrying uses the CTM1050CAN transceiver of being with isolation features, can effectively realize electrical isolation, improves the antijamming capability of network service under industrial environment.Because CAN communication is a kind of broadcast mode, data link layer is based on the processing mode of CSMA/CD, and promptly any one unit all can be received by other nodes the transmission of network.
After the user selects CAN bus data reception interface, when if the CAN network has data to arrive, this plate CAN interface can respond this interruption and receive data, through after the filtering, be defined as (effectively ID number scope can be provided with in the page in system by the user and be provided with voluntarily) corresponding data effective ID number, and data temporarily be stored in the internal RAM of LPC2292.If the user stops to receive, software systems can point out the user whether to need to preserve the data of this group of received: the user selects to preserve, and system can be stored in data in the SD card with the TXT text formatting, and prompting user-in file title; If the user selects not preserve, system directly this group data content of demonstration is browsed for the user.To from RAM, delete data automatically after withdrawing from this reception interface.
After the user selects the CAN bus data to send the interface, can on the interface, to send the content of data by the button input, select again to send from CAN1 or CAN2, just related data can be sent on the CAN network afterwards.Software systems can be carried out data analysis by reading the data of storage in historical communication data in the SD card or the RAM district, judge whether communication is wrong.
But all user's inputs voluntarily in the interface is set such as the relevant setting of CAN communication such as baud rate, filter range etc. are stored in the corresponding C AN communication register more automatically, and are simple and easy to use.
Two, adopt the single channel ethernet communication:
The utility model Ethernet communication circuit has adopted the ENC28J60 chip of MicroChip company.This chip has adopted the ethernet controller of IEEE802.3 compatibility; Integrated MAC and 10base-T PHY; Have receiver and conflict and suppress the 10base-T port that circuit supports that a band auto polarity detects and proofreaies and correct; Support the full and half duplex pattern; May be programmed in when clashing and retransmit automatically; Filling able to programme and CRC generate; Automatic refusal misdata bag able to programme; Top speed can reach the SPI interface of 10Mb/s.
Ethernet data receives: after the user selects the Ethernet data reception interface, when if Ethernet has data to arrive, the CPU microprocessor can respond this interruption and receive the Frame that transmits on the Ethernet, and software systems can be stored the Frame that receives or directly check the current Frame that receives.
Ethernet data is analyzed: the user can read Ethernet history data store file from SD, and can be search condition filtering data file by input IP address, checks the specific data frame information.
The utility model also can adopt the RS485/RS422 serial communication: the user can carry out serial communication by the RS485/RS422 interface, and the user must select basis instrument such as communication baud rate, data bit in the interface is set before carrying out communication.
The reception of serial data: this machine adopts the regularly mode of inquiry, and whether detect serial ports has the data input, in case the data input is arranged, just receives and resolves these data and it is left in the designated memory locations, for user inquiring.
The transmission of serial data: the data of user's input can send by serial ports after the affirmation.Whether detect the work of serial communication object for the user normal.
The utlity model has that volume is little, integrated level is high, low in energy consumption, stability good, advantage simple to operate, easy to carry, can help the Field Force to implement on the spot fast accurately location, maintenance and auxiliary patrolling and examining to fault, increase work efficiency.
Claims (10)
1. the hand-held watercraft cabinet equipment is safeguarded the detecting operation device, it is characterized in that, comprises the hand-held housing and is arranged on the interior testing circuit of housing, and described housing is provided with display screen and function button; Described testing circuit comprises: the CPU microprocessor, the CAN Netcom news circuit, Ethernet communication circuit, RS485/RS422 serial communication circuit, SD card read/write circuit, button inputting circuits, the display circuit that are connected with the CPU microprocessor, and the embedded processing circuit that is embedded in the CPU microprocessor, also comprise the power circuit that CPU microprocessor and foregoing circuit work are provided;
Described embedded processing circuit comprises:
The data acquisition module that is used for the acquisition testing data that is electrically connected with the output terminal of button inputting circuits;
The data that are used for being gathered that are electrically connected with the output terminal of data acquisition module are carried out the data resolution module of analyzing and processing;
The data processing module that being used for of being electrically connected with the output terminal of data resolution module handled the data of data analysis module output;
And,
The data transmission blocks that is used for handled data are sent to by CAN Netcom news circuit, Ethernet communication circuit, RS485/RS422 serial communication circuit host computer that is electrically connected with the output terminal of data processing module; The output terminal of this data transmission blocks also is electrically connected with described SD card read/write circuit;
The output terminal of described display circuit is electrically connected with display screen.
2. hand-held watercraft cabinet equipment according to claim 1 is safeguarded the detecting operation device, it is characterized in that described data acquisition module comprises: with the two-way CAN bus data acquisition unit that is electrically connected of CAN bus, with the two-way Ethernet data collecting unit that is electrically connected of industry ethernet and with the two-way serial data collection unit that is electrically connected of RS485/RS422 serial ports; Wherein:
Described CAN bus data acquisition unit comprises CAN bus data acquisition unit subelement, the reception data buffer unit that is electrically connected with the output terminal of CAN bus data acquisition subelement; Described CAN bus data acquisition unit receives image data by the CAN bus; Described reception data buffer unit is connected with described data resolution module is two-way;
Described Ethernet data collecting unit comprises the buffer cell that Ethernet data is gathered subelement and gathered the data query unit that subelement is electrically connected and the judging unit that is electrically connected with the output terminal of data query unit, is electrically connected with judging unit with Ethernet data; Described Ethernet data is gathered subelement and is received image data by industry ethernet; Described buffer cell is connected with described data resolution module is two-way;
Described serial data collection unit comprises serial data collection subelement, the timing query unit that is electrically connected with this serial data collection subelement, the judging unit that is electrically connected with this timing query unit, the serial received cache register that is electrically connected with this judging unit; Described serial data collection subelement receives image data by the RS485/RS422 serial ports; Described serial received cache register is connected with data resolution module is two-way with described.
3. hand-held watercraft cabinet equipment according to claim 1 is safeguarded the detecting operation device, it is characterized in that, described data resolution module comprises CAN bus data resolution unit, Ethernet data resolution unit, serial data resolution unit, wherein:
Described CAN bus data resolution unit comprises the filtering of CAN message, CAN message error-detecting;
Described Ethernet data resolution unit comprises ARP Packet Filtering, ICMP Packet Filtering and UDP message packet filtering.
Described serial data resolution unit comprises according to specifying serial port protocol to resolve the serial data that receives.
4. hand-held watercraft cabinet equipment according to claim 1 is safeguarded the detecting operation device, it is characterized in that, described data processing module is used for data processing that the packet that receives is correlated with, comprises the request of data unit, data response unit, state transmitting element, data retrieval unit and the computing unit that are linked in sequence.
5. hand-held watercraft cabinet equipment according to claim 1 is safeguarded the detecting operation device, it is characterized in that, described data outputting module comprises: the data transmission unit that the CAN data send, Ethernet data sends and serial data sends.
6. hand-held watercraft cabinet equipment according to claim 1 is safeguarded the detecting operation device, it is characterized in that, described power circuit comprises outer for 24V power supply and dry cell power supply two parts.
7. hand-held watercraft cabinet equipment according to claim 1 is safeguarded the detecting operation device, it is characterized in that, described CAN Netcom news circuit adopts the two-way CAN bus redundancy communication, and the CAN2.0 agreement of expansion structure is adopted in the CAN communication.
8. hand-held watercraft cabinet equipment according to claim 1 is safeguarded the detecting operation device, it is characterized in that, described Ethernet communication circuit is based on the UDP communications protocol.
9. hand-held watercraft cabinet equipment according to claim 1 is safeguarded the detecting operation device, it is characterized in that, described read/write circuit comprises SD card read/write circuit, is undertaken alternately by spi bus and CPU microprocessor, realizes data write.
10. hand-held watercraft cabinet equipment according to claim 1 is safeguarded the detecting operation device, it is characterized in that described CPU microprocessor adopts the 32-bit microprocessor based on the ARM7 kernel of supporting real-time simulation and high speed Flash storer tracking and that have embedding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145349U CN201540487U (en) | 2009-11-30 | 2009-11-30 | Handheld operator for maintenance and detection of equipment in marine engine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145349U CN201540487U (en) | 2009-11-30 | 2009-11-30 | Handheld operator for maintenance and detection of equipment in marine engine room |
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| Publication Number | Publication Date |
|---|---|
| CN201540487U true CN201540487U (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202145349U Expired - Fee Related CN201540487U (en) | 2009-11-30 | 2009-11-30 | Handheld operator for maintenance and detection of equipment in marine engine room |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327012A (en) * | 2013-05-30 | 2013-09-25 | 江西洪都航空工业集团有限责任公司 | All-purpose RS232/422/485 data receiving method based on communication protocol |
| CN106707852A (en) * | 2016-12-07 | 2017-05-24 | 中国电子科技集团公司第五十四研究所 | Hand-held terminal controller of communication device and communication device control method |
| CN108803420A (en) * | 2018-06-02 | 2018-11-13 | 新乡市光明电器有限公司 | Military mobile unit collection control circuit |
| CN113783706A (en) * | 2021-08-26 | 2021-12-10 | 福建星云电子股份有限公司 | Multi-machine communication system and method |
| CN113884895A (en) * | 2021-11-15 | 2022-01-04 | 武汉长海高新技术有限公司 | CAN bus-Ethernet data conversion device and method for battery test |
| CN114448827A (en) * | 2021-12-30 | 2022-05-06 | 上海自动化仪表有限公司 | Manual operator with Modbus communication diagnosis function |
-
2009
- 2009-11-30 CN CN2009202145349U patent/CN201540487U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327012A (en) * | 2013-05-30 | 2013-09-25 | 江西洪都航空工业集团有限责任公司 | All-purpose RS232/422/485 data receiving method based on communication protocol |
| CN106707852A (en) * | 2016-12-07 | 2017-05-24 | 中国电子科技集团公司第五十四研究所 | Hand-held terminal controller of communication device and communication device control method |
| CN108803420A (en) * | 2018-06-02 | 2018-11-13 | 新乡市光明电器有限公司 | Military mobile unit collection control circuit |
| CN108803420B (en) * | 2018-06-02 | 2024-05-10 | 新乡市光明电器有限公司 | Centralized control circuit for military vehicle-mounted equipment |
| CN113783706A (en) * | 2021-08-26 | 2021-12-10 | 福建星云电子股份有限公司 | Multi-machine communication system and method |
| CN113884895A (en) * | 2021-11-15 | 2022-01-04 | 武汉长海高新技术有限公司 | CAN bus-Ethernet data conversion device and method for battery test |
| CN114448827A (en) * | 2021-12-30 | 2022-05-06 | 上海自动化仪表有限公司 | Manual operator with Modbus communication diagnosis function |
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