CN203217371U

CN203217371U - Vehicle data acquisition device

Info

Publication number: CN203217371U
Application number: CN 201320262074
Authority: CN
Inventors: 朱宗平; 邵毅; 郭广军; 饶劲松; 彭真明; 李立春
Original assignee: 63963 TROOPS PLA
Current assignee: 63963 TROOPS PLA
Priority date: 2013-05-14
Filing date: 2013-05-14
Publication date: 2013-09-25
Anticipated expiration: 2023-05-14

Abstract

The utility model relates to a vehicle data acquisition device. The vehicle data acquisition device comprises a power source conversion module, a data acquisition module, a computer module and a CAN communication module, wherein the data acquisition module, the computer module and the CAN communication module are connected sequentially, the power source conversion module is respectively connected with the data acquisition module, the computer module and the CAN communication module, the CAN communication module is connected with the CAN bus network, the data acquisition module is connected with parts to be measured, the power source conversion module is used for converting a vehicle power source voltage into work voltages of various modules, the computer module is used for carrying out sequential control and data processing of the data acquisition module and the CAN communication module, the data acquisition module is mainly used for carrying out conditioning, acquisition and storage of state signals of the parts to be measured, and the CAN communication module is used for sending state data after acquisition and processing to the CAN bus network. The vehicle data acquisition device realizes dynamic networked real-time monitoring on various parts of a vehicle through real-time monitoring and recording of state information of various parts.

Description

The vehicle carried data collecting device

Technical field

The utility model belongs to the testing tool technical field, relates to a kind of vehicle carried data collecting device.

Background technology

Vehicular electronic control unit is the core component that vehicle travels and controls, and its state of the art has decisive role to the normal operation of vehicle.Therefore, need its state of the art of monitoring in real time, to guarantee the driving safety of vehicle.At present, the status monitoring of vehicle is primarily aimed at certain parts, adopts the mode of additional sensor to finish.Because interrelated between each parts in the vehicle operating process, monitoring certain parts separately can't be to vehicle whole service process complete replication, therefore, generation, development and the position fixing process of vehicle trouble is difficult to accurate grasp.Therefore, need a kind of state monitoring apparatus of networking to come all associated components of vehicle are carried out dynamic monitoring.

The utility model content

The purpose of this utility model provides a kind of vehicle carried data collecting device, and solving prior art can't carry out dynamic monitoring to all associated components of vehicle, thereby generation, development and the position fixing process of vehicle trouble is difficult to the accurately problem of grasp.

The technical solution of the utility model is that the vehicle carried data collecting device comprises power transfer module, data acquisition module, computer module and CAN communication module; Data acquisition module, computer module and CAN communication module are connected successively, power transfer module is connected respectively with data acquisition module, computer module and CAN communication module, the CAN communication module is connected with the CAN bus network, and data acquisition module is connected with unit under test; Power transfer module is the operating voltage of each module with the vehicle power supply voltage transitions; Computer module is finished the sequential control of data acquisition module, CAN communication module and data is handled; Data acquisition module is mainly finished the conditioning of unit under test status signal, collection and storage; The status data of CAN communication module after with acquisition process sends on the CAN bus network.

Computer module comprises CPU, and CPU is connected with storer, PC104 interface, CAN bus interface and Peripheral Interface.

The CAN communication module is connected to form successively by PC104 interface, CAN controller, photoisolator and bus transceiver.

The utlity model has following beneficial effect:

1, the utility model is by data acquisition module, power transfer module, computer module and CAN communication module, the status information of unit under test is in time gathered and is transferred in the network system, real-time monitoring and the record of each unit information have been realized, for the travel condition of vehicle analysis provides important reference data.

2, the utility model is by after carrying out Dynamic Data Acquiring, handling to associated components such as the power system of vehicle, kinematic train, power-supply systems, by sharing of CAN bus interface completion status data, realize the dynamic networkization of all parts of vehicle is monitored in real time.

Description of drawings

Fig. 1 is the utility model vehicle carried data collecting apparatus system block diagram;

Fig. 2 is the utility model vehicle carried data collecting device part block diagram;

Fig. 3 is the data acquisition module block diagram of the utility model vehicle carried data collecting device;

Fig. 4 is the utility model vehicle carried data collecting device computer module frame chart;

Fig. 5 is the utility model vehicle carried data collecting device CAN communication module block diagram

Fig. 6 is the utility model vehicle carried data collecting device power transfer module block diagram.

Among the figure, a. data acquisition module, b. computer module, c.CAN communication module, d. power transfer module, e.CAN bus network, f. unit under test.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

Referring to Fig. 1, the utility model vehicle carried data collecting device comprises data acquisition module a, computer module b, CAN communication module c and power transfer module d.Data acquisition module a is connected between computer module b and the unit under test f, and CAN communication module c is connected between computer module b and the CAN bus network e.Power transfer module d provides working power for all modules; Data acquisition module a nurses one's health the status information of unit under test f, gather and stores; Computer module b will gather the status information of storage and handle, and extract useful characteristic and also be stored.CAN communication module c carries out protocol conversion with the status information of computer module b storage and on-demand delivery on the CAN bus network, realizes sharing of status information.

Power transfer module d connects computer module b, data acquisition module a and CAN communication module c, and vehicle power supply voltage 26V is converted to the operating voltage ± 5V of all the other modules, ± 12V etc.

Data acquisition module a is connected between unit under test f and the computer module b, will collect signal and deliver to through conditioning, after isolating and store in the computing machine and handle.

CAN communication module c is connected between computer module b and the CAN bus network e, and the status information after the Computer Processing in time is transferred on the CAN bus network e.

Computer module b couples together data acquisition module a and CAN communication module c, is responsible for sequential control and data management between the module.

Referring to Fig. 2, data acquisition module a, computer module b, CAN communication module c, power transfer module d form the vehicle carried data collecting device.

Referring to Fig. 3, data acquisition module a gathers path, 16 road I/O collection path and 8 road counting collection paths by 16 road A/D and forms.The data of all collections are transferred to computer module and handle by installing inner PC104 bus interface.

Referring to Fig. 4, computer module b is made up of CPU, storer, PC104 interface, CAN bus interface and Peripheral Interface.Wherein, CPU adopts is 16 80386 chips.What storer was selected for use is the ferroelectric of 8 32K, can store the 256K data at most.What external interface connected is RS232 serial ports and USB interface, is mainly used in program debug.

Referring to Fig. 5, CAN communication module c is made up of PC104 interface, CAN controller, photoisolator and bus transceiver.The CAN controller is selected the SJA1000 chip for use, is connected between PC104 interface and the photoisolator, after the data of Computer Storage are received by the PC104 interface, carries out protocol conversion and gives photoisolator.Photoisolator is selected the 6N137 high-speed chip for use, is connected between bus controller and the bus transceiver, finishes the electrical isolation between the data front and back end, guarantees the reliability of communication.Bus transceiver is selected the MAX3057ASA chip for use, is connected between photoisolator and the bus cable, finishes the electric conversion of data-signal, guarantees that data communication function is normal.

Referring to Fig. 6, power transfer module d is the DC/DC insulating power supply of a PC104 standard, input range 15V～36V, output voltage be ± 5V and ± 12V, output current is 1.5A, can satisfy the power demands of vehicle carried data collecting device.The main chip of insulating power supply is UC1843, it is a PWM controller, export the pulse of adjustable 400KHZ, drive high-frequency transformer, make the secondary of transformer also export pulse, by the shaping filter voltage stabilizing, output ± 5V and ± 12V, and by FEEDBACK CONTROL PWM controller, reach the effect of stable output.

The vehicle carried data collecting device is that status information with unit under test is by data collecting module collected and store device inside into, after computer module is analyzed and handled data, by the CAN communication module data are transferred on the CAN bus network according to certain format and realize information sharing.A plurality of vehicle carried data collecting devices are formed vehicle CAN bus data monitoring net, can realize the networking of each unit information of vehicle is monitored and record in real time.

The vehicle carried data collecting device is by 16 road A/D, 16 road I/O and 8 road countings are with the status information capture auto levelizer inside of unit under test, giving computer module by the PC104 interface with data handles, extract characteristic parameter information, and be stored on the ferroelectric memory, give CAN bus monitoring net with data by the two-way CAN bus channel transfer by the PC104 interface then, realize dynamic monitoring and information sharing to the vehicle part state.

The utility model, is realized the dynamic networkization of all parts of vehicle is monitored in real time by sharing of CAN bus interface completion status data by after associated components such as the power system of vehicle, kinematic train, power-supply system being carried out Dynamic Data Acquiring, handling.By data acquisition module, power transfer module, computer module and CAN communication module, the status information of unit under test is in time gathered and is transferred in the network system, real-time monitoring and the record of each unit information have been realized, for the travel condition of vehicle analysis provides important reference data.

Claims

1. the vehicle carried data collecting device is characterized in that: comprise power transfer module (d), data acquisition module (a), computer module (b) and CAN communication module (c); Described data acquisition module (a), computer module (b) and CAN communication module (c) are connected successively, described power transfer module (d) is connected respectively with data acquisition module (a), computer module (b) and CAN communication module (c), described CAN communication module (c) is connected with CAN bus network (e), and described data acquisition module (a) is connected with unit under test (f); Described power transfer module (d) is the operating voltage of each module with the vehicle power supply voltage transitions; Described computer module (b) is finished the sequential control of data acquisition module (a), CAN communication module (c) and data is handled; Described data acquisition module (a) is mainly finished conditioning, collection and the storage to unit under test (f) status signal; Described CAN communication module (c) sends to the status data after the acquisition process on the described CAN bus network (e).

2. vehicle carried data collecting device as claimed in claim 1, it is characterized in that: described computer module (b) comprises CPU, described CPU is connected with storer, PC104 interface, CAN bus interface and Peripheral Interface.

3. vehicle carried data collecting device as claimed in claim 1, it is characterized in that: described CAN communication module (c) is connected to form successively by PC104 interface, CAN controller, photoisolator and bus transceiver.