CN204269745U - A kind of Portable multifunctional tester of integrated display screen - Google Patents
A kind of Portable multifunctional tester of integrated display screen Download PDFInfo
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- CN204269745U CN204269745U CN201420783807.2U CN201420783807U CN204269745U CN 204269745 U CN204269745 U CN 204269745U CN 201420783807 U CN201420783807 U CN 201420783807U CN 204269745 U CN204269745 U CN 204269745U
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Abstract
The utility model discloses a kind of Portable multifunctional tester of integrated display screen, by external interface and the display screen be arranged on fixed base plate, PXIe bus backplane, embedded controller, multimeter module, oscilloscope module, virtual arbitrary waveform generator module, data acquisition card module, power module, wave filter and fan composition, this utility model can realize the Portable multifunctional tester that an instrument uses as multiple instrument simultaneously, this tester is integrated with touch display screen, topology layout is compact, consider the layout Duct design of heat source component, body structure intensity and vibration resistance, electromagnetic Compatibility Design, space availability ratio is high, aobvious control beautiful interface, possesses good portability.
Description
Technical field
The utility model belongs to measurement technical field of measurement and test, is specifically related to a kind of Portable multifunctional tester of integrated display screen.
Background technology
In electronic surveying industry, often use the multiple instruments such as multimeter, oscillograph, spectrum analyzer, signal source, the general volume of these instruments is comparatively large, and when the instrument quantity needing to use is more, floor area is large and carry inconvenience.
Summary of the invention
The purpose of this utility model is to provide one and has multiple common instrument function, the Portable multifunctional tester that an instrument uses as multiple instrument simultaneously can be realized, this tester is integrated with touch display screen, topology layout is compact, the layout Duct design of heat source component, body structure intensity and vibration resistance, electromagnetic Compatibility Design are considered, space availability ratio is high, and aobvious control beautiful interface, possesses good portability.
Technical solution of the present utility model is:
A Portable multifunctional tester for integrated display screen, its special character is: be made up of external interface and display screen, PXIe bus backplane, embedded controller, multimeter module, oscilloscope module, virtual arbitrary waveform generator module, data acquisition card module, power module, wave filter and fan;
The alternating current 220V power supply of described wave filter to input carries out filtering, and filtered power supply is input to DC power supplier;
Described DC power supplier is responsible for powering to liquid crystal touch screen and PXI bus backplane, and PXI bus backplane powers to each PXIe functional module again;
Zero slot that described embedded controller is inserted into PXIe bus backplane by guide rail is put, and described digital multimeter module, Digital Oscillograph Module, virtual arbitrary waveform generator module and data acquisition card module are inserted into the peripheral groove position of PXIe bus backplane by guide rail;
4 road analog inputs of described digital multimeter are connected to 1 with 4 banana connectors 1 of casing right panel;
2 road analog inputs of described digital oscilloscope are connected to 1 with 3 BNC sockets 1 of casing right panel with 1 tunnel trigger pip;
1 road analog output of described AWG (Arbitrary Waveform Generator) is connected with 2 BNC sockets of casing right panel with 1 tunnel trigger pip;
4 road analog inputs of described data collecting card are connected to 1 with 5 BNC sockets 1 of casing right panel with 1 tunnel trigger pip;
1 DVI-Integrated of described embedded controller is connected with display screen, and 2 LAN mouths are connected with USB interface with the outside LAN of casing respectively with 4 USB interface;
Described fan is arranged at the side of PXIe bus backplane.
Said external interface comprises:
1.1) display screen of tester adopts the mode of 17 inches of accurate touch-screens of big screen LCD collocation technical grade;
1.2) tester is connected with measurand by test cable, each root test cable connects a drive test trial signal, connects 8 tunnel simulating signal Measurement channel at most, wherein, and multimeter 1 tunnel, oscillograph 2 tunnel, signal source 1 tunnel, data acquisition/flow table/analyze 4 tunnels;
1.3) oscillograph, signal source, data acquisition/flow table/analysis configure 1 tunnel external trigger interface respectively, can support external signal Trigger Function;
1.4) tester configures 4 road USB2.0 ports and 2 road LAN ports, for connecting peripheral auxiliary equipment.
Above-mentioned PXIe bus backplane is provided with 12 slots altogether, comprises 1 system groove, 1 timing groove and 10 mixing channels, is placed on by timing groove on the 7th slot of backboard, so that star trigger signal is to the isometric line design of each slot.
Above-mentioned PXIe bus backplane comprises following a few part:
A) Clock Design
Comprise clock and PXI Trigger total line by; Clock part provides the distribution of the generation of PXI_CLK10, PXIe_CLK100 and PXIe_SYNC100, synchronous and clock; PCIe total line, by the route mainly completing PCIe signal, realizes the routing link of each slot signal;
B) PCIe total line by and pci bus expand
Complete the route of PCIe signal, realize the PCIe bus link of system slot and each slot and PCIe to PCI bridge, and complete the expansion of backboard pci bus by PCIe to PCI bridge, realize the design of mixing slot;
By PCIe bus-exchange switch, 4 of system groove groups of PCIe buses are routed on each slot and PCIe to PCI bridge respectively.Peripheral hardware groove is designed to the link width of X4, can provide the slot bandwidth of 2GB/s.
In order to ensure the system bandwidth of backboard 8GB/s, PCIe total line realizes by adopting 2 PEX8624 and a slice PEX8613 in the design.This two PCIe bus-exchange switch is technical grade device, supports PCIe specification 2.0, and automatic backward compatible PCIe specification 1.0.
Pci bus expansion adopts the PCIe to PCI bridge XIO2001 of TI company, this device is for supporting PCIe specification 1.0,6 PCI equipment can be supported, in design, realize 2 groups of pci bus expansions by two panels PCIe to PCI bridge, often organize pci bus and connect 5 mixing slots.
C) backboard is powered
Power unit passes through DC-DC device, for the integrated circuit on backboard provides the supply voltage of 1.0V, 1.2V, 1.5V and 2.5V;
The devices such as FPGA, PCIe alteration switch in backboard and PCIe to PCI bridge need the supply voltage of 1.0V, 1.2V, 1.5V and 2.5V.The electric current needed due to 1.0V is larger, needs multi-disc DC converter to power to PEX8624 respectively, powers according to LDO, and the voltage difference between input and output is comparatively large, and most energy ezpenditure, on LDO, therefore needs the dc-dc adopting conversion efficiency higher.Common modular power source noise is comparatively large, easily interferes with the high speed signal on backboard.Here select the efficient DC-DC conversion chip EN6360QI of integrated inductor to realize, EN6360QI is when 3.3V Power supply, and conversion efficiency is about 90%.In addition, its aerial thermal resistance is 15 DEG C/W, and at busy hour, when without heat radiator, temperature rise is only about 9 DEG C.Current needs for other electric pressure is smaller, and general conventional LDO all can meet.
D) PXI Trigger bus bridge
By PXI Trigger bus bridge circuit, for the PXI Trigger bus on backboard increases driving force, and realize the program control setting triggering arbitrarily direction.
The logical circuit adopting band 3 state to export realizes the bridging functionality of PXI_TRIG [0:7], selects the 74AHCT2G125 of NXP.This chip comprises the impact damper in the same way that two have ternary output function, and all there is independent enable pin on each road, when Enable Pin is high level, exports as high-impedance state, can realize the isolation between two bridge sections.In the design in order to prevent two impact dampers to be enabled simultaneously, add a 74LVC1G18 in Enable Pin, specific implementation circuit as shown in Figure 1.
When EN is high, PXI_TRIG BUS bridge is in isolation mode, when EN is low, is controlled to trigger direction by DIR.Achieve the direction of PXI_TRIG BUS bridge and enable control by this method, and can arrange separately each root triggering line.Its direction and enable control signal are provided by the GPIO of PCIe alteration switch.
Above-mentioned Portable multifunctional tester, is characterized in that: this tester operating temperature range is-10 DEG C ~ 55 DEG C, storing temperature-20 DEG C ~ 70 DEG C.
Above-mentioned Portable multifunctional tester, is characterized in that: supplied by AC/DC electricity two kinds of modes supported by this tester, exchanges 85 ~ 264V, direct current 120 ~ 350V.
Post conducting film outside above-mentioned display screen, film thickness is only 0.133mm, and transmittance reaches 80%.
Elastomeric material is provided with between above-mentioned display screen and fixed base plate.
Above-mentioned Portable multifunctional tester, is characterized in that: this tester outside is provided with rubber protecting jacket, plays certain protective effect to tester.
The utility model has the advantage of: the utility model can realize the Portable multifunctional tester that an instrument uses as multiple instrument simultaneously, this tester is integrated with touch display screen, topology layout is compact, the layout Duct design of heat source component, body structure intensity and vibration resistance, electromagnetic Compatibility Design are considered, space availability ratio is high, aobvious control beautiful interface, possesses good portability.
Accompanying drawing explanation
Fig. 1 is tester fundamental diagram;
Fig. 2 is the theory diagram of PXIe bus backplane;
Fig. 3 is clock synchronous and distribution principle block diagram;
Fig. 4 is PXI Trigger bus bridge circuit figure;
Fig. 5 is the composition frame chart of computer module;
Fig. 6 is tester external structure.
Embodiment
Below specific implementation process of the present utility model is further described in detail.
Be the bridge of the connection all functions module of tester see Fig. 1, PXIe bus backplane, it provides power supply for each functional module, and by signals such as multiply-connected bus transmissioning data, address, triggering, clock, arbitration, interruptions.PXIe bus backplane is provided with 12 slots altogether, and comprise 1 system groove, 1 timing groove and 10 mixing channels, the principle of PXIe bus backplane is see Fig. 2.
On the laying out slot positions of backboard, timing groove is placed on the 7th slot of backboard, so that star trigger signal is to the isometric line design of each slot.
Following a few part is mainly comprised in backboard:
A) Clock Design
Mainly comprise in backboard clock and PXI Trigger total line by.Clock part provides the distribution of the generation of PXI_CLK10, PXIe_CLK100 and PXIe_SYNC100, synchronous and clock; PCIe total line, by the route mainly completing PCIe signal, realizes the routing link of each slot signal.
Backboard Clock Design comprises the design of three class clock signals, is PXI_CLK10 clock respectively, PXIe_CLK100 clock and PXIe_SYNC100 synchronous clock.This part design adopts special clock synchronizer CDC7005 to realize the synchronous of PXI_CLK10 clock and PXIe_CLK100 clock, then utilizes the multipath clock divider of Low phase noise to be distributed on each slot by clock.Clock synchronous and distribution principle are see Fig. 1.
PXI_CLK10 clock source has 3, is backboard onboard clock, rear panel input clock and timing slot clock respectively.Above-mentioned 3 clocks of FPGA Real-Time Monitoring on backboard, according to the priority (from low to high) of backboard onboard clock, below input clock, timing slot clock, select corresponding clock as PXI_CLK10 clock source, as shown in table 1.
Table 1 backboard PXI_CLK10 clock source selection relation
B) PCIe total line by and pci bus expand
Complete the route of PCIe signal, realize the PCIe bus link of system slot and each slot and PCIe to PCI bridge, and complete the expansion of backboard pci bus by PCIe to PCI bridge, realize the design of mixing slot.
By PCIe bus-exchange switch, 4 of system groove groups of PCIe buses are routed on each slot and PCIe to PCI bridge respectively.Peripheral hardware groove is designed to the link width of X4, can provide the slot bandwidth of 2GB/s.
In order to ensure the system bandwidth of backboard 8GB/s, PCIe total line realizes by adopting 2 PEX8624 and a slice PEX8613 in the design.This two PCIe bus-exchange switch is technical grade device, supports PCIe specification 2.0, and automatic backward compatible PCIe specification 1.0.
Pci bus expansion adopts the PCIe to PCI bridge XIO2001 of TI company, this device is for supporting PCIe specification 1.0,6 PCI equipment can be supported, in design, realize 2 groups of pci bus expansions by two panels PCIe to PCI bridge, often organize pci bus and connect 5 mixing slots.
C) backboard is powered
Power unit passes through DC-DC device, for the integrated circuit on backboard provides the supply voltage of 1.0V, 1.2V, 1.5V and 2.5V.
The devices such as FPGA, PCIe alteration switch in backboard and PCIe to PCI bridge need the supply voltage of 1.0V, 1.2V, 1.5V and 2.5V.The electric current needed due to 1.0V is larger, needs multi-disc DC converter to power to PEX8624 respectively, powers according to LDO, and the voltage difference between input and output is comparatively large, and most energy ezpenditure, on LDO, therefore needs the dc-dc adopting conversion efficiency higher.Common modular power source noise is comparatively large, easily interferes with the high speed signal on backboard.Here select the efficient DC-DC conversion chip EN6360QI of integrated inductor to realize, EN6360QI is when 3.3V Power supply, and conversion efficiency is about 90%.In addition, its aerial thermal resistance is 15 DEG C/W, and at busy hour, when without heat radiator, temperature rise is only about 9 DEG C.Current needs for other electric pressure is smaller, and general conventional LDO all can meet.
D) PXI Trigger bus bridge
By PXI Trigger bus bridge circuit, for the PXI Trigger bus on backboard increases driving force, and realize the program control setting triggering arbitrarily direction.
The logical circuit adopting band 3 state to export realizes the bridging functionality of PXI_TRIG [0:7], selects the 74AHCT2G125 of NXP.This chip comprises the impact damper in the same way that two have ternary output function, and all there is independent enable pin on each road, when Enable Pin is high level, exports as high-impedance state, can realize the isolation between two bridge sections.In the design in order to prevent two impact dampers to be enabled simultaneously, add a 74LVC1G18 in Enable Pin, specific implementation circuit is see Fig. 4.
When EN is high, PXI_TRIG BUS bridge is in isolation mode, when EN is low, is controlled to trigger direction by DIR.Achieve the direction of PXI_TRIG BUS bridge and enable control by this method, and can arrange separately each root triggering line.Its direction and enable control signal are provided by the GPIO of PCIe alteration switch.
Computer module is the control survey center of tester, it controls by PXIe bus backplane the simulating signal that multimeter module, oscilloscope module and data acquisition module measure input, control signal source module outputting analog signal, and data and waveform are shown on the touchscreen.In addition, computer module by LAN mouth or USB port can with peripherals, comprise printer, portable hard drive, switch etc. and carry out exchanges data; The composition frame chart of computer module is see Fig. 5.
Portable multifunctional tester mainly comprises 17 inches of touch LCD screens, PXIe bus backplane, embedded controller module, multimeter module, oscilloscope module, virtual arbitrary waveform generator module, data acquisition card module, power module, wave filter, fan etc.Relation between each module is as follows:
1) the alternating current 220V power supply of alternating current filter to input carries out filtering, and filtered power supply is input to DC power supplier;
2) DC power supplier is responsible for powering to liquid crystal touch screen and PXI bus backplane, and PXI bus backplane powers to each PXIe functional module again;
3) zero slot that embedded controller module is inserted into PXIe bus backplane by guide rail is put, other four pieces of PXIe functional modules, comprise digital multimeter module, Digital Oscillograph Module, virtual arbitrary waveform generator module and data acquisition card module are inserted into PXIe bus backplane peripheral groove position by guide rail;
4) 4 road analog inputs of digital multimeter are connected to 1 with 4 banana connectors 1 of casing right panel by shielded cable;
5) 2 road analog inputs of digital oscilloscope are connected to 1 with 3 BNC sockets 1 of casing right panel by shielded cable with 1 tunnel trigger pip;
6) 1 road analog output of AWG (Arbitrary Waveform Generator) is connected with 2 BNC sockets of casing right panel by shielded cable with 1 tunnel trigger pip;
7) 4 road analog inputs of data collecting card are connected to 1 with 5 BNC sockets 1 of casing right panel by shielded cable with 1 tunnel trigger pip;
8) 1 DVI-Integrated of embedded controller module to be shielded with 17 inches of touch LCDs by private cable and is connected, and 2 LAN mouths are connected with USB interface with the outside LAN of casing by private cable respectively with 4 USB interface.
Because Portable multifunctional tester integrates multiple stage instrument, external interface is more, conveniently user uses, the interface class of each instrument is drawn respectively, simultaneously in order to meet the operating habit of most of user, the interface that measured signal accesses is arranged on right panel, these three kinds of instruments of high-speed data flow table/multi-functional phasometer/dynamic signal analyzer share four outer input interfaces (BNC) " CH1 ", " CH2 ", " CH3 ", " CH4 " and an outer input interface (BNC) " TRIG " are as external trigger signal input part, digital oscilloscope has two outer input interfaces (BNC) " CH1 ", " CH2 " and an outer input interface (BNC) " TRIG " are as external trigger signal input part, signal source has 1 outer output interface (BNC) " OUT " and an outer input interface (BNC) " TRIG " as external trigger signal input part, digital multimeter has four outer input interfaces (banana connector) " V Ω ", " COM1 ", " COM2 ", " I Ω ", wherein " COM1 " and " COM2 " connects black meter pen, " V Ω " and " I Ω " connects red test pencil.
See Fig. 6, Portable multifunctional tester adopt band touch function 17 " TFT LCD display, as human-computer interaction interface, can operate tester without the need to keyboard and mouse, when needed, can be operated by USB port external connection keyboard and mouse.Outside display screen, post conducting film, film thickness is only 0.133mm, and transmittance reaches 80%, does not affect the viewing of user to screen.Conducting film has certain shielding action to electromagnetic wave, to carrying out crimping process between the conductive layer of film and cabinet, making to have good electric conductivity between the two, ensureing the leakproofness of whole cabinet.Between display screen and fixed base plate, add elastomeric material, improve antivibration, the shock resistance of display screen.Tester outside is provided with rubber protecting jacket, has anti-skidding, abrasionproof and undermines the effects such as antivibration, play certain protective effect to tester.
Claims (9)
1. a Portable multifunctional tester for integrated display screen, is characterized in that: be made up of external interface and display screen, PXIe bus backplane, embedded controller, multimeter module, oscilloscope module, virtual arbitrary waveform generator module, data acquisition card module, power module, wave filter and the fan be arranged on fixed base plate;
The alternating current 220V power supply of described wave filter to input carries out filtering, and filtered power supply is input to DC power supplier;
Described DC power supplier is responsible for powering to liquid crystal touch screen and PXI bus backplane, and PXI bus backplane powers to each PXIe functional module again;
Zero slot that described embedded controller is inserted into PXIe bus backplane by guide rail is put, and described digital multimeter module, Digital Oscillograph Module, virtual arbitrary waveform generator module and data acquisition card module are inserted into the peripheral groove position of PXIe bus backplane by guide rail;
4 road analog inputs of described digital multimeter are connected to 1 with 4 banana connectors 1 of casing right panel;
2 road analog inputs of described digital oscilloscope are connected to 1 with 3 BNC sockets 1 of casing right panel with 1 tunnel trigger pip;
1 road analog output of described AWG (Arbitrary Waveform Generator) is connected with 2 BNC sockets of casing right panel with 1 tunnel trigger pip;
4 road analog inputs of described data collecting card are connected to 1 with 5 BNC sockets 1 of casing right panel with 1 tunnel trigger pip;
1 DVI-Integrated of described embedded controller is connected with display screen, and 2 LAN mouths are connected with USB interface with the outside LAN of casing respectively with 4 USB interface;
Described fan is arranged at the side of PXIe bus backplane.
2. the Portable multifunctional tester of integrated display screen according to claim 1, it is characterized in that, described external interface comprises:
1.1) display screen of tester adopts the mode of 17 inches of accurate touch-screens of big screen LCD collocation technical grade;
1.2) tester is connected with measurand by test cable, each root test cable connects a drive test trial signal, connects 8 tunnel simulating signal Measurement channel at most, wherein, and multimeter 1 tunnel, oscillograph 2 tunnel, signal source 1 tunnel, data acquisition/flow table/analyze 4 tunnels;
1.3) oscillograph, signal source, data acquisition/flow table/analysis configure 1 tunnel external trigger interface respectively, can support external signal Trigger Function;
1.4) tester configures 4 road USB2.0 ports and 2 road LAN ports, for connecting peripheral auxiliary equipment.
3. the Portable multifunctional tester of integrated display screen according to claim 1 or 2, it is characterized in that: described PXIe bus backplane is provided with 12 slots altogether, comprise 1 system groove, 1 timing groove and 10 mixing channels, timing groove is placed on the 7th slot of backboard, so that star trigger signal is to the isometric line design of each slot.
4. the Portable multifunctional tester of integrated display screen according to claim 3, it is characterized in that, described PXIe bus backplane comprises following a few part:
A) Clock Design
Comprise clock and PXI Trigger total line by; Clock part provides the distribution of the generation of PXI_CLK10, PXIe_CLK100 and PXIe_SYNC100, synchronous and clock; PCIe total line, by the route mainly completing PCIe signal, realizes the routing link of each slot signal;
B) PCIe total line by and pci bus expand
Complete the route of PCIe signal, realize the PCIe bus link of system slot and each slot and PCIe to PCI bridge, and complete the expansion of backboard pci bus by PCIe to PCI bridge, realize the design of mixing slot;
C) backboard is powered
Power unit passes through DC-DC device, for the integrated circuit on backboard provides the supply voltage of 1.0V, 1.2V, 1.5V and 2.5V;
D) PXI Trigger bus bridge
By PXI Trigger bus bridge circuit, for the PXI Trigger bus on backboard increases driving force, and realize the program control setting triggering arbitrarily direction.
5. the Portable multifunctional tester of integrated display screen according to claim 4, is characterized in that: this tester operating temperature range is-10 DEG C ~ 55 DEG C, storing temperature-20 DEG C ~ 70 DEG C.
6. the Portable multifunctional tester of integrated display screen according to claim 5, is characterized in that: supplied by AC/DC electricity two kinds of modes supported by this tester, exchanges 85 ~ 264V, direct current 120 ~ 350V.
7. the Portable multifunctional tester of integrated display screen according to claim 6, is characterized in that: post conducting film outside described display screen, film thickness is only 0.133mm, and transmittance reaches 80%.
8. the Portable multifunctional tester of integrated display screen according to claim 7, is characterized in that: be provided with elastomeric material between described display screen and fixed base plate.
9. the Portable multifunctional tester of integrated display screen according to claim 8, is characterized in that: this tester outside is provided with rubber protecting jacket, plays certain protective effect to tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420783807.2U CN204269745U (en) | 2014-12-12 | 2014-12-12 | A kind of Portable multifunctional tester of integrated display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420783807.2U CN204269745U (en) | 2014-12-12 | 2014-12-12 | A kind of Portable multifunctional tester of integrated display screen |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764944A (en) * | 2014-12-12 | 2015-07-08 | 陕西海泰电子有限责任公司 | Portable multifunctional tester integrated with display screen |
| CN107139215A (en) * | 2017-07-10 | 2017-09-08 | 吉林省博辉智能化机器人制造有限公司 | A kind of industrial robot decoder examining-repairing instrument |
| CN107607763A (en) * | 2017-08-28 | 2018-01-19 | 武汉理工大学 | A kind of analog signal Real-time Collection transmission display system |
| CN108318724A (en) * | 2018-03-14 | 2018-07-24 | 桂林电子科技大学 | A kind of hand-held type multifunctional general measuring instrument |
| CN113640552A (en) * | 2021-08-10 | 2021-11-12 | 成都尚琰科技有限公司 | Novel measuring instrument |
-
2014
- 2014-12-12 CN CN201420783807.2U patent/CN204269745U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764944A (en) * | 2014-12-12 | 2015-07-08 | 陕西海泰电子有限责任公司 | Portable multifunctional tester integrated with display screen |
| CN107139215A (en) * | 2017-07-10 | 2017-09-08 | 吉林省博辉智能化机器人制造有限公司 | A kind of industrial robot decoder examining-repairing instrument |
| CN107607763A (en) * | 2017-08-28 | 2018-01-19 | 武汉理工大学 | A kind of analog signal Real-time Collection transmission display system |
| CN108318724A (en) * | 2018-03-14 | 2018-07-24 | 桂林电子科技大学 | A kind of hand-held type multifunctional general measuring instrument |
| CN113640552A (en) * | 2021-08-10 | 2021-11-12 | 成都尚琰科技有限公司 | Novel measuring instrument |
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Granted publication date: 20150415 Termination date: 20151212 |
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