CN206387865U - Hand-held ensures terminal - Google Patents
Hand-held ensures terminal Download PDFInfo
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- CN206387865U CN206387865U CN201720045920.4U CN201720045920U CN206387865U CN 206387865 U CN206387865 U CN 206387865U CN 201720045920 U CN201720045920 U CN 201720045920U CN 206387865 U CN206387865 U CN 206387865U
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Abstract
Terminal is ensured the utility model discloses a kind of hand-held, it includes housing and circuit unit；The housing is frame type housing, and the circuit unit is arranged in the housing；The circuit unit includes processor, memory, touch display screen, external interface and expansion module；The memory is connected with the processor signal；The external interface circuit is connected to the processor；The expansion module is connected with the processor signal；The expansion module is universal meter module or data transmit-receive module.The hand-held of the present embodiment ensures that terminal is based on virtual instrument thought, different test measurement functions are realized by the expansion module that can be changed, hand-held ensures that terminal possesses very strong flexibility in terms of having the function of tablet personal computer, therefore portable, extension, use concurrently simultaneously.
Description
Technical field
The utility model is related to test and detection field, and particularly current grassroots army unit is ensured to equipment, safeguarded, tieed up
Field is repaiied, more particularly to a kind of hand-held ensures terminal.
Background technology
Grassroots army unit is being ensured, maintenance, repair when, usually using functions such as common multimeter, oscillograph, signal sources
Single measuring instrument is measured to equipment, and equipment signal kinds are various, and required basic measurement instrument is various, especially in the wild
In the case of, carry very inconvenient；In addition, when carrying out fault detect to equipment, the test data produced by detection process fails
Remain, but these test datas are equipped into the rule for producing failure for statistics and analysis by long-term accumulation, so that
The performance of equipment can further be improved, the reliability and stability of equipment can be increased substantially.Some grassroots army units are used
PXI/PXIe virtual instrument platform is to realize the integrated of a variety of basic measurement instruments, but the virtual instrument based on PXI/PXIe is flat
Platform heaviness is inconvenient to carry.
Utility model content
The utility model purpose is to provide a kind of hand-held and ensures terminal, its compact, lightweight, easy to carry, behaviour
Make simple.
The utility model solves technical problem and adopted the following technical scheme that：A kind of hand-held ensures terminal, and it includes housing
And circuit unit；
The housing is frame type housing, and the circuit unit is arranged in the housing；
The circuit unit includes processor, memory, touch display screen, external interface and expansion module；
The memory is connected with the processor signal；
The touch display screen includes 10.1 inch display screens and capacitance touch screen, and the processor passes through display control circuit
And LVDS interface is connected with the 10.1 inch display screen signal；And the processor is connect by touch screen circuitry and SPI
Mouth is connected with the capacitance touch screen signal；
The external interface circuit is connected to the processor；The expansion module is connected with the processor signal；
The expansion module is universal meter module or data transmit-receive module.
Optionally, the universal meter module includes input protection module, analog-to-digital conversion module, MCU controllers and relay；
Analog-to-digital conversion module circuit is connected to the input protection module, and the MCU controller signals are connected to the mould
Number modular converter, the MCU controllers are connected by expansion interface with the processor；The relay signal is connected to described
MCU controllers, the relay also circuit is connected to the analog-to-digital conversion module.
Optionally, the analog-to-digital conversion module includes integrated sampling A/D chip, RMS-to-DC converters and sample resistance；
The sample resistance circuit is connected to the RMS-to-DC converters, the RMS-to-DC transducer signals connection
In the integrated sampling A/D chip.
Optionally, the data transmit-receive module includes the first Signal-regulated kinase, analog-digital converter, FPGA controller, the
One digital analog converter, secondary signal conditioning module, the second digital analog converter and the 3rd Signal-regulated kinase；
First Signal-regulated kinase is connected with the analog-digital converter signal, the analog-digital converter and the FPGA
Controller signals are connected, and the FPGA controller is connected by expansion interface with the processor signal, the FPGA controller
Also signal is connected to first digital analog converter and the second digital analog converter, first digital analog converter and the described second letter
Number conditioning module signal connection, second digital analog converter is connected with the 3rd Signal-regulated kinase signal.
Optionally, opening is offered on the front side wall of the housing, the touch display screen is arranged in the opening.
The utility model has the advantages that：The hand-held of the present embodiment ensures that terminal is based on virtual instrument thought,
Different test measurement functions are realized by the expansion module that can be changed, while hand-held ensures that terminal has tablet personal computer concurrently
Function, therefore portable, extension, possess very strong flexibility in terms of use.
Brief description of the drawings
Fig. 1 is the structural representation that hand-held of the present utility model ensures terminal；
Fig. 2 is the dimensional structure diagram that hand-held of the present utility model ensures terminal；
Fig. 3 is the structural representation of circuit unit of the present utility model；
Fig. 4 is the structural representation of universal meter module of the present utility model；
Fig. 5 is the structural representation of data transmit-receive module of the present utility model；
Mark is illustrated as in figure：1- housings；2- rubber protecting jackets；3- connection sheets；4- fixing bands；5- touch display screens.
Embodiment
The technical solution of the utility model is further elaborated with reference to embodiment and accompanying drawing.
Embodiment 1
Present embodiments provide a kind of hand-held and ensure terminal, it includes housing and circuit unit.
The housing uses frame type housing prepared by aluminium alloy, i.e., described housing is in cubic, so that described
Housing has the characteristics of lightweight and intensity is big.In the present embodiment, rubber protecting jacket is arranged with the housing two ends, to pass through
The rubber protecting jacket improves the cushioning ability that the hand-held ensures terminal, so that the hand-held ensures that terminal is met
Army's target vibration, impact are required.
Moreover, the hand-held ensures that terminal also includes the X-shaped fixation hand strap of two rubber protecting jackets of connection, the X-shaped
Two, the left side fixing band of fixed hand strap is individually fixed in the upper and lower end of the rubber protecting jacket positioned at left side, while institute
Two fixing bands for stating the right side that X-shaped fixes hand strap are individually fixed in the upper end and lower end of the rubber protecting jacket positioned at right side
Portion, so as to be attached two rubber protecting jackets by the X-shaped hand strap, to prevent the rubber protecting jacket from described
Come off on housing.
The X-type hand strap includes connection sheet and four fixing bands, and four corners that are shaped as of the connection sheet are fillet
Rectangle, and the rectangle four sides be indent arc-shaped；One end of four fixing bands is individually fixed in four
Corner, the other end is individually fixed in the rubber protecting jacket.
The circuit unit is arranged in the housing, in the present embodiment, and the circuit unit includes processor, storage
Device, touch display screen, external interface and expansion module；
The processor is Freescale i.MX series processors, and the memory is connected with the processor signal, institute
The model 8GB eMMC memories of memory are stated, with the operating system of the memory memory storage this hand-held guarantee terminal
And data.
The processor is connected with the touch display screen signal, to enable the processor to control described touch to show
Display screen shows corresponding content, and is received by touch display screen in the information of input, the present embodiment, the front side wall of the housing
On offer opening, the touch display screen is arranged in the opening, so that when touch display screen display content, Ke Yitong
The opening for crossing the housing shows user.
The touch display screen includes 10.1 inch display screens and capacitance touch screen, and the processor passes through display control circuit
And LVDS interface is connected with the 10.1 inch display screen signal, to control the display content of the 10.1 inch display screen；And
The processor is connected by touch screen circuitry and SPI interface with the capacitance touch screen signal, to pass through the capacitive touch
Touch the input that screen realizes information；In the present embodiment, it is preferable that the 10.1 inch display screen can be high-resolution from technical grade
Display screen.
In the present embodiment, the external interface circuit is connected to the processor, so that number is charged and stored to internal battery
According to importing and exporting.
The expansion module is connected with the processor signal, with the expansion module connect other equipment when, for example
Universal meter module can be inserted in expansion module, the processor can be communicated with the equipment, and can be with universal meter module
Communicated, to send measurement instruction to expansion module and read measured value.
The power supply controls electricity by battery management circuit to the processor, memory, display control circuit, touch-screen
Road, external interface and expansion module are powered.
In the present embodiment, the external interface can be USB interface or Ethernet interface, to cause this hand-held to ensure
Terminal circumscribed USB peripheral hardware or can be connected by Ethernet with other equipment.
In the present embodiment, the expansion module is universal meter module and data transmit-receive module, and the universal meter module has
Function of multimeter, the data transmit-receive module has two paths of signals output function.In the present embodiment, the expansion module is by expanding
Exhibition interface is connected with the processor signal, so that the expansion module has the function of hot plug.
The expansion interface is realized using the high-density plate with shield effectiveness to plate interface, to facilitate the expanded mode
The plug and replacing of block.
In the present embodiment, the universal meter module is 60,000 4/5/6 numerical digits of counting, the real effective general-purpose of hand range
Table module.The analog-to-digital conversion module that the universal meter module is realized using integrated circuit is core, and the overload protection of gamut can be used
In parameters such as measurement combined-voltage, ac and dc current, resistance, electric capacity, diodes, it is possible to carried out data transmission by USB.
The universal meter module includes input protection module, analog-to-digital conversion module, MCU controllers and relay.
Input protection module has overvoltage protection and overcurrent protection function, and overvoltage protection is used to the voltage signal of input, right
The current signal of input prevents high voltage and high current from causing irreversible to whole circuit module using overvoltage and overcurrent protection
Damage.
Analog-to-digital conversion module circuit is connected to the input protection module, and realizes the function of analog-to-digital conversion, the present embodiment
In, the analog-to-digital conversion module includes integrated sampling A/D chip ES51998, RMS-to-DC converter and sample resistance；The sampling
Resistance is used for decaying to the signal of input, and the alternating voltage that RMS-to-DC converters sample the process sample resistance/
Current signal is converted into real effective, and is sampled by the integrated sampling A/D chip.
The MCU controller signals are connected to the analog-to-digital conversion module, and the numeral generated by its conversion is believed
Number MCU controllers are read, and the data signal is handled, to obtain corresponding measured value.
In the present embodiment, the MCU controllers are connected by expansion interface with the processor, are calculated what is obtained
Measured value is sent to the processor, and under the control of the processor, is shown in the touch display screen.
The relay signal is connected to the MCU controllers, to control being turned on or off for the relay, this reality
Apply in example, the relay also circuit is connected to the analog-to-digital conversion module, by two-way relay group into all the way for switching electricity
Press shelves and resistance/capacitance shelves, all the way for switching electric current mA shelves with A grades.
In the present embodiment, 4 gears of the universal meter module ac/dc voltage gear point, respectively 600mV grades, 6V
Shelves, 60V grades and 300V grades.Reachable ± (the 0.03%+ of precision of different gears, wherein DC voltage shelves is selected according to measurement range
5).Ac/dc 3 each gears of current gear point, respectively 60mA, 600mA, 1A.Resistance grade has 6 gears, respectively 600 Ω,
6K Ω, 60K Ω, 600K Ω, 6M Ω and 30M Ω.Electric capacity shelves have 7 gears, respectively 6nF, 60nF, 600nF, 6uF,
60uF、600uF、6mF.The open-circuit voltage of diode shelves is about 3V, as short-circuit pressure drop≤0.0300V, and buzzer starts, and continuously
Sounding.
The data transmit-receive module is the functional module that collection shows digital wave device and signal source is an entirety.Signal can be used as
Source output DC voltage, sine wave, triangular wave, the waveform such as square wave, also can as a range of analog signal of oscilloscope measurement,
Carried out data transmission by USB.
The data transmit-receive module includes the first Signal-regulated kinase, analog-digital converter, FPGA controller, the first digital-to-analogue and turned
Parallel operation, secondary signal conditioning module, the second digital analog converter and the 3rd Signal-regulated kinase.
First Signal-regulated kinase is connected with the analog-digital converter signal, when input signal is believed by described first
Number conditioning module, and after being nursed one's health by first Signal-regulated kinase, analog-to-digital conversion is carried out into analog-digital converter, i.e., will be defeated
The analog signal entered is converted to data signal, and the analog-digital converter is connected with the FPGA controller signal, by the number
Word signal is inputted to the FPGA controller, and the FPGA controllers are handled the data signal, the FPGA controls
Device is connected by expansion interface with the processor signal, and the signal after FPGA controller processing is sent to described
Processor, under the control of the processor, shows to the waveform of the analog signal of input；It is described in the present embodiment
FPGA controllers also signal is connected to first digital analog converter and the second digital analog converter, first digital analog converter
It is connected with the secondary signal conditioning module signal, second digital analog converter connects with the 3rd Signal-regulated kinase signal
Connect, with the control of the FPGA controller, realize two-way waveform export, wherein the waveform exported can for DC voltage,
Sine wave, triangular wave, square wave.Wherein reachable ± the 5mv of precision of DC voltage shelves, sine wave, triangular wave, square wave output frequency error
Less than 1%.
The hand-held of the present embodiment ensures that terminal is based on virtual instrument thought, is realized by the expansion module that can be changed
Different test measurement functions, while hand-held ensures that terminal has the function of tablet personal computer concurrently, therefore it is portable, extend, use
Aspect possesses very strong flexibility.Hand-held ensures that management terminal mainly possesses following functions feature：
(1) the Measuring Instrument functions such as universal meter, oscillograph, signal source are supported, ensure that terminal one kind is set with hand-held
It is standby to replace miscellaneous basic instrument；
(2) this hand-held ensures that terminal volume is small, lightweight, is easy to carry, and suitable for any equipment repair occasion；
(3) this hand-held ensures that terminal is supported to automatically save test data, and possesses conventional breakdown judge function；
(4) this hand-held ensures that terminal supports the functions such as analysis storage, data statistics, analysis, the processing of test data；
(5) ensure that terminal can realize the information system management of equipment Safeguard object by this hand-held；And this hand-held
Ensure that terminal has flexible autgmentability.
For ease of description, the quality of embodiment is not only represented for the sequencing of above example.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (5)
1. a kind of hand-held ensures terminal, it is characterised in that including housing and circuit unit；
The housing is frame type housing, and the circuit unit is arranged in the housing；
The circuit unit includes processor, memory, touch display screen, external interface and expansion module；
The memory is connected with the processor signal；
The touch display screen includes 10.1 inch display screens and capacitance touch screen, the processor by display control circuit and
LVDS interface is connected with the 10.1 inch display screen signal；And the processor by touch screen circuitry and SPI interface with
The capacitance touch screen signal connection；
The external interface circuit is connected to the processor；The expansion module is connected with the processor signal；
The expansion module is universal meter module or data transmit-receive module.
2. hand-held according to claim 1 ensures terminal, it is characterised in that the universal meter module includes input and protected
Module, analog-to-digital conversion module, MCU controllers and relay；
Analog-to-digital conversion module circuit is connected to the input protection module, and the MCU controller signals are connected to the modulus and turned
Block is changed the mold, the MCU controllers are connected by expansion interface with the processor；The relay signal is connected to the MCU
Controller, the relay also circuit is connected to the analog-to-digital conversion module.
3. hand-held according to claim 2 ensures terminal, it is characterised in that the analog-to-digital conversion module includes integrated adopt
Sample chip, RMS-to-DC converters and sample resistance；
The sample resistance circuit is connected to the RMS-to-DC converters, and the RMS-to-DC transducer signals are connected to institute
State integrated sampling A/D chip.
4. hand-held according to claim 1 ensures terminal, it is characterised in that the data transmit-receive module includes the first letter
Number conditioning module, analog-digital converter, FPGA controller, the first digital analog converter, secondary signal conditioning module, the second digital-to-analogue conversion
Device and the 3rd Signal-regulated kinase；
First Signal-regulated kinase is connected with the analog-digital converter signal, and the analog-digital converter is controlled with the FPGA
Device signal is connected, and the FPGA controller is connected by expansion interface with the processor signal, and the FPGA controller is also believed
First digital analog converter and the second digital analog converter number are connected to, first digital analog converter is adjusted with the secondary signal
Module by signal connection is managed, second digital analog converter is connected with the 3rd Signal-regulated kinase signal.
5. hand-held according to claim 4 ensures terminal, it is characterised in that offered out on the front side wall of the housing
Mouthful, the touch display screen is arranged in the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720045920.4U CN206387865U (en) | 2017-01-13 | 2017-01-13 | Hand-held ensures terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720045920.4U CN206387865U (en) | 2017-01-13 | 2017-01-13 | Hand-held ensures terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206387865U true CN206387865U (en) | 2017-08-08 |
Family
ID=59493009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720045920.4U Active CN206387865U (en) | 2017-01-13 | 2017-01-13 | Hand-held ensures terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206387865U (en) |
-
2017
- 2017-01-13 CN CN201720045920.4U patent/CN206387865U/en active Active
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