CN204065944U - A kind of handheld computer based on Godson 1A processor - Google Patents
A kind of handheld computer based on Godson 1A processor Download PDFInfo
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- CN204065944U CN204065944U CN201420510326.4U CN201420510326U CN204065944U CN 204065944 U CN204065944 U CN 204065944U CN 201420510326 U CN201420510326 U CN 201420510326U CN 204065944 U CN204065944 U CN 204065944U
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Abstract
The utility model discloses a kind of handheld computer based on Godson 1A processor, its structure comprises CPU, mainboard, CPU selects Godson 1A processor, described mainboard adopts 8 laminate S-S-G-S-S-P-S-S to design, wherein S is signals layer, and G is GND, P is bus plane, all signal wire internal layer cablings, reduce TOP layer and BOTTOM layer cabling.Have compared with strong environmental suitability, powerful, mobility strong, low in energy consumption, size is little, easy to carry, the feature such as dependable performance, compact conformation, the function of signal Real-time Collection and transmission, high speed processing can be realized, possess reliability performance that is high, normal table work under rugged environment simultaneously; Meet the features such as synthetic operation such as command & control and signal acquisition process of special unit.
Description
Technical field
The utility model relates to field of computer technology, is specifically related to a kind of handheld computer based on Godson 1A processor.
Background technology
The autonomous ruggedized computer of hand-held can be widely used in the industries such as board information terminal, communication terminal, individual soldier's Portable field job platform, army, People's Armed Police, oil, geology, electric power, mapping and be used as field work intelligent platform.In individual combat, accurately know self-position and orientation, report to a higher body situation about collecting in time, and commanding officer, according to the data reported, carries out decision-making, and scheduling troops and firepower, carry out motor-driven and command & control to fight.Have compared with strong environmental suitability, powerful, mobility strong, low in energy consumption, size is little, easy to carry, the feature such as dependable performance, compact conformation, the function of signal Real-time Collection and transmission, high speed processing can be realized, possess reliability performance that is high, normal table work under rugged environment simultaneously; Meet the features such as synthetic operation such as command & control and signal acquisition process of special unit.
Along with the develop rapidly of microelectric technique and computer technology, increasing high-tech crystallization is applied to the special industries such as public security, army, People's Armed Police.The autonomous ruggedized computer of hand-held is one of them.At present, the Handheld reinforced computer that these industries use is non-domestic processor, memory capacity is little, arithmetic speed is slow, positioning precision is not high, it is bad etc. to add solidity, and these shortcomings limit their application in military affairs.
Summary of the invention
The technical problems to be solved in the utility model is: the autonomous ruggedized computer of the utility model hand-held mainly solves that common hand-held set security is low, memory capacity is low, without navigation, add that solidity is bad, adaptive capacity to environment and the bad shortcoming of Electro Magnetic Compatibility, achieve the two location of real-time follow-up, reliability is high, normal table work under rugged environment, and these can be widely used in military time service and navigator fix field and radio communication aspect.
The utility model is a specially to militarization design, employing Godson 1A processor based on 3.5 cun of autonomous ruggedized computers of hand-held of Godson 1A processor, better meets the demand of military's Large Copacity electronic chart.
The technical scheme that the utility model adopts is:
A kind of handheld computer based on Godson 1A processor, its structure comprises CPU, mainboard, CPU selects Godson 1A processor, and described mainboard adopts 8 laminate S-S-G-S-S-P-S-S to design, and wherein S is signals layer, G is GND, P is bus plane, adopts the design of laser buried blind via, and reduces TOP layer and BOTTOM layer cabling, all signal wire internal layer cablings, effectively can reduce top layer cabling electromagnetic radiation.
Wherein, CPU is arithmetic core and the control core of system, and its major function is interpretive order, process data.CPU selects Godson 1A processor, and most high primary frequency 300MHZ, has data Cache and the 16KB Instruction Cache of 16KB, an integrated 2D GPU controller, 32 DDR2 controllers, interruptable controller, ethernet controllers etc.And provide the abundant external interface such as serial ports, USB2.0, PCI.
Described handheld computer structure also comprises NAND FLASH flash memory, and adopt 2 2GB to form 4GB high speed SLC NAND FLASH chip, store for data and program, data bit width is 16.
Described handheld computer structure also comprises DDR storer, adopts 2 16 256MB DDR2 SDRAM, altogether 512MB size.
The built-in dynamic retardation compensation circuit (DCC) of Godson 1A, for reliable diffusion and the reception of data.DDR2 chip built-in ODT circuit, can reduce outside coupling, save cost, performance is more stable.
Described handheld computer structure also comprises SD card expansion interface, turns SD card interface chip realize by USB.
Described handheld computer structure also comprises power module, and handheld computer adopts powered battery and external dc power two kinds of power supply modes, and adopts external power source priority scheme to implement.Hand-held set directly can access direct current+24V power supply, and power supply adaptor provides alternating current 220V to the conversion of direct current+24V, adopts the autonomous device form be separated with main frame.During lithium battery adopts " logical finger portable matching equipment battery system type type spectrum ", specification is the embedded poly-lithium battery of 14.4V/2Ah.
Described power module comprises input circuit, power division part, multichannel DC translation circuit, output protection circuit, indicating circuit, wherein external input voltage direct current+24V, through input circuit, ripple in electrical network and spike are suppressed, and the loss to circuit when providing polar protective circuit to avoid input reverse-connection;
Power division part is mainly used in the normal work preferentially meeting equipment under certain power input condition, then regulates the size of the charging current to battery according to affluence amount, and power input all can be used for the charging to battery when equipment does not work;
Multichannel DC translation circuit is the magnitude of voltage converted to by the cell voltage of input voltage or standby needed for various load, adopts the circuit of synchronous rectification of non-isolated, has very high conversion efficiency, can extend the working time of battery.Stress requirement to power device when soft start function can reduce circuit start.The voltage accuracy of 1% and peak value are the quality and performance that the function such as signal driving force, output over-voltage protection of 3A can guarantee plurality of voltages, and the output on each road all has overload and short-circuit protection function, automatically can recover normal output after load restoration is normal;
Output protection circuit is that when the output terminal on arbitrary road detects overvoltage, protection circuit cuts off the voltage of input end immediately to protect the safety of output terminal load circuit when control chip or power device lost efficacy.
Indicating circuit is used to refer to the power work state such as input voltage, the output of multiple-channel output voltage.
Battery management part is made up of circuit and software two parts, and major function is as follows:
Its reads the charging voltage of intelligent battery, charging current and battery status and sends to CPU, manages the charging monitoring of intelligent battery to complete.
The discharge condition of the charged state of the power supply source of system equipment, battery, battery, battery can be held time, the information such as the alerting signal of battery sends to system host, user can read these information in the terminal display of system host.
Described CPU module, power module use paster type encapsulation components and parts, to reduce " antenna effect " that direct insertion component's feet produces as far as possible, suppress disseminating of signal; Complete machine internal signal cable adopts shielded cable, ensure that signal transmits reliably, simultaneously decreases electromagnetic leakage; Complete machine power supply have employed filtering technique, prevents electromagnetic crosstalk signal from entering complete machine by power supply.
Described handheld computer adopts damping shock absorption technology; Shell adopts magnalium housing, and increases protective coating; Housing adopts integrated design, possesses good waterproof and electromagnetic protection function.
Described handheld computer structure also comprises CF interface, the PC CARD I/O pattern CF card interface of a standard is expanded by PCI extended chip PCI1510, CF clamping oralia is connected with mainboard by 80PIN board to board connector, CF card the 38th pin is for ruining key signal input pin, when destroying button and pressing, there is provided a low level to this pin by trigger circuit, the duration is greater than 1 minute.
CF card the 50th pin is key grouting socket, for carrying out note key to security module.This pin is directly guided on outside air plug interface, the operation of convenient note key.
Described handheld computer structure also comprises Big Dipper module interface, and for expanding Big Dipper module, the definition of its interface meets " Big Dipper No. two customer equipment data interface requirements " (2.1 editions).
Hand-held set Big Dipper module is pluggable: by Beidou antenna and device through walls and structure locked, CF/ Big Dipper expansion board increases the guide rail corresponding with Big Dipper module, and Big Dipper module FPC soft ribbons line draws data-interface and handset communications from the side.
Described handheld computer structure also comprises display module, and described display module comprises LCDs and touch-screen, and LCDs selects 3.5 cun of LCD screen of LED-backlit, and touch-screen adopts surface-mount type four-wire resistive screen.
Godson 1A provides LCD display interface, is directly connected with display screen, realizes the Presentation Function of hand-held set.Display backlight drives and adopts PWM mode to control, mainboard provides backlight enable signal PWM_EN to control to open the switch of backlight, backlight conditioning signal PWM, the pulse-width signal of different duty is provided, control LED drive circuit and export different constant-current supply, control the brightness of LED, realize the classification regulatory function of backlight.
Driving circuit adopts touch screen signal conversion chip to realize, and touch-screen control chip receives the coordinate information of touch-screen, realizes touch controllable function.
The beneficial effects of the utility model are: the compatible adaptive and optimization of the software and hardware based on the hand-held computing platform of Loongson processor
For the instruction set of Godson 1A processor and the feature of hardware platform, by circuit design, the integrated transformation of firmware, the integrated transformation of operating system etc., solve the integrated adaptation between processor, chipset and peripheral chip, firmware, operating system etc. and system optimization, build technical system and the technology chain of domestic handheld computer, improve the combination property of machine system.
The cutting of domestic embedded OS on dragon chip processor platform, transplanting, domestic embedded OS carries out transforming and optimizing mainly for handheld computer hardware platform, for the feature of Godson 1A processor instruction set, addressing mode, interruption and electric power management mechanism aspect, corresponding transformation is carried out to ReWorks operating system.Also according to concrete using forestland and the scene of handheld computer, simplify embedded operating system kernel and core external environment supporting assembly, optimization system Booting sequence, reforming equipment drive load mode, realize the quick startup of hand hand computer system.
Low power dissipation design based on Loongson processor handheld computing platform:
While Optimization Design of Electronic Circuits fully reduces system hardware power consumption, from software respective, enriched the low power dissipation design means of system by the optimisation strategy to system power dissipation operating strategy, power consumption switching time, the aspect such as the low-power consumption utilization of instruction and the low power dissipation design of program.Under safeguards system performance condition, system power dissipation efficiency is greatly improved, extends System production time.
Possess abundant external interface, can realize the control model of multi-sensor cooperation work, the reasonable distribution of control terminal computational resource is shared with efficient, improves the practicality of I/O throughput and system.Whole external interface all adopts the form of air plug, ensures reliably to connect; The military line data transmission set of multichannel can be connected simultaneously, realize the Real-time Collection of signal, process and transmission.
Possess good Electro Magnetic Compatibility, have employed in overall design and press down source, containing and filtering technique, effectively raise the Electro Magnetic Compatibility of complete machine.
Whole housing is succinct, attractive in appearance; Have employed the design of brand-new wicket, one-hand operation; Complete machine is streamlined, and outward appearance is small and exquisite, meets ergonomics, is equipped with wrist strap, conveniently holds.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model handheld computer;
Fig. 2 is the rear view of the utility model handheld computer;
Fig. 3 is the right view of the utility model handheld computer;
Fig. 4 is the upward view of the utility model handheld computer;
Fig. 5 is the utility model CF interface circuit block diagram;
Fig. 6 is that the utility model shows/touch circuit block diagram;
Fig. 7 is the utility model hand-held autonomous ruggedized computer electrical principle block diagram;
Fig. 8 is the utility model power principle block diagram.
Embodiment
With reference to the accompanying drawings, by embodiment, the utility model is further illustrated:
A kind of handheld computer based on Godson 1A processor, its structure comprises CPU, mainboard, CPU selects Godson 1A processor, and described mainboard adopts 8 laminate S-S-G-S-S-P-S-S to design, and wherein S is signals layer, G is GND, P is bus plane, adopts the design of laser buried blind via, and reduces TOP layer and BOTTOM layer cabling, all signal wire internal layer cablings, effectively can reduce top layer cabling electromagnetic radiation.
Wherein, CPU is arithmetic core and the control core of system, and its major function is interpretive order, process data.CPU selects Godson 1A processor, and most high primary frequency 300MHZ, has data Cache and the 16KB Instruction Cache of 16KB, an integrated 2D GPU controller, 32 DDR2 controllers, interruptable controller, ethernet controllers etc.And provide the abundant external interface such as serial ports, USB2.0, PCI.
Described handheld computer structure also comprises NAND FLASH flash memory, and adopt 2 2GB to form 4GB high speed SLC NAND FLASH chip, store for data and program, data bit width is 16.
Described handheld computer structure also comprises DDR storer, adopts 2 16 256MB DDR2 SDRAM, altogether 512MB size.
The built-in dynamic retardation compensation circuit (DCC) of Godson 1A, for reliable diffusion and the reception of data.DDR2 chip built-in ODT circuit, can reduce outside coupling, save cost, performance is more stable.
Described handheld computer structure also comprises SD card expansion interface, turns SD card interface chip realize by USB.
Described handheld computer structure also comprises power module, described power module comprises input circuit, power division part, multichannel DC translation circuit, output protection circuit, indicating circuit, as shown in Figure 8, wherein external input voltage direct current+24V, through input circuit, ripple in electrical network and spike are suppressed, and the loss to circuit when providing polar protective circuit to avoid input reverse-connection;
Power division part is mainly used in the normal work preferentially meeting equipment under certain power input condition, then regulates the size of the charging current to battery according to affluence amount, and power input all can be used for the charging to battery when equipment does not work;
Multichannel DC translation circuit is the magnitude of voltage converted to by the cell voltage of input voltage or standby needed for various load, adopts the circuit of synchronous rectification of non-isolated, has very high conversion efficiency, can extend the working time of battery.Stress requirement to power device when soft start function can reduce circuit start.The voltage accuracy of 1% and peak value are the quality and performance that the function such as signal driving force, output over-voltage protection of 3A can guarantee plurality of voltages, and the output on each road all has overload and short-circuit protection function, automatically can recover normal output after load restoration is normal;
Output protection circuit is that when the output terminal on arbitrary road detects overvoltage, protection circuit cuts off the voltage of input end immediately to protect the safety of output terminal load circuit when control chip or power device lost efficacy.
Indicating circuit is used to refer to the power work state such as input voltage, the output of multiple-channel output voltage.
Battery management part is made up of circuit and software two parts, and major function is as follows:
Its reads the charging voltage of intelligent battery, charging current and battery status and sends to CPU, manages the charging monitoring of intelligent battery to complete.
The discharge condition of the charged state of the power supply source of system equipment, battery, battery, battery can be held time, the information such as the alerting signal of battery sends to system host, user can read these information in the terminal display of system host.
Described CPU module, power module use paster type encapsulation components and parts, to reduce " antenna effect " that direct insertion component's feet produces as far as possible, suppress disseminating of signal; Complete machine internal signal cable adopts shielded cable, ensure that signal transmits reliably, simultaneously decreases electromagnetic leakage; Complete machine power supply have employed filtering technique, prevents electromagnetic crosstalk signal from entering complete machine by power supply.
Described handheld computer adopts damping shock absorption technology; Shell adopts magnalium housing, and increases protective coating; Housing adopts integrated design, possesses good waterproof and electromagnetic protection function.
Described handheld computer structure also comprises CF interface, as shown in Figure 5, the PC CARD I/O pattern CF card interface of a standard is expanded by PCI extended chip PCI1510, CF clamping oralia is connected with mainboard by 80PIN board to board connector, CF card the 38th pin is for ruining key signal input pin, when destroying button and pressing, provide a low level to this pin by trigger circuit, the duration is greater than 1 minute.
CF card the 50th pin is key grouting socket, for carrying out note key to security module.This pin is directly guided on outside air plug interface, the operation of convenient note key.
Described handheld computer structure also comprises Big Dipper module interface, and for expanding Big Dipper module, the definition of its interface meets " Big Dipper No. two customer equipment data interface requirements " (2.1 editions).
Hand-held set Big Dipper module is pluggable: by Beidou antenna and device through walls and structure locked, CF/ Big Dipper expansion board increases the guide rail corresponding with Big Dipper module, and Big Dipper module FPC soft ribbons line draws data-interface and handset communications from the side.
Described handheld computer structure also comprises display module, and described display module comprises LCDs and touch-screen, and LCDs selects 3.5 cun of LCD screen of LED-backlit, and touch-screen adopts surface-mount type four-wire resistive screen, display/touch circuit theory as shown in Figure 6.
Godson 1A provides LCD display interface, is directly connected with display screen, realizes the Presentation Function of hand-held set.Display backlight drives and adopts PWM mode to control, mainboard provides backlight enable signal PWM_EN to control to open the switch of backlight, backlight conditioning signal PWM, the pulse-width signal of different duty is provided, control LED drive circuit and export different constant-current supply, control the brightness of LED, realize the classification regulatory function of backlight.
Driving circuit adopts touch screen signal conversion chip to realize, and touch-screen control chip receives the coordinate information of touch-screen, realizes touch controllable function.
Described handheld computer structure also comprises keyboard, by 10 numerical keys and functions such as 0-9, switch, return, backspace, space, navigation key (upper and lower, left and right), carriage return, *, #, reset, the function button such as switching on and shutting down form.
Shooting collecting unit adopts USB interface 3,000,000 pixel camera collecting unit GNEH100114, follow UVC specification, collection image acquisition, shooting control, data compression, USB port are transmitted in one, high performance digital signal process chip realizes compression at high proportion to original image, can compatible various image processing software easily.Camera is passive work, therefore controls with the power supply of controlled Switch Controller camera, to reduce power consumption.
Described handheld computer structure also comprises Ethernet, adopts GMAC bus extension, by RTL8211E network chip, realizes 10M/100M adaptive network interface, and carry out power consumption control by GPIO interface to network chip.
Described handheld computer structure also comprises audio frequency and adopts the output of AC97 audio frequency to be connected with loudspeaker after chip modulation, demodulation, amplification, externally provides earphone/microphone interface simultaneously.
Claims (10)
1. the handheld computer based on Godson 1A processor, its structure comprises CPU, mainboard, CPU selects Godson 1A processor, it is characterized in that: described mainboard adopts 8 laminate S-S-G-S-S-P-S-S to design, wherein S is signals layer, and G is GND, P is bus plane, all signal wire internal layer cablings, reduce TOP layer and BOTTOM layer cabling.
2. a kind of handheld computer based on Godson 1A processor according to claim 1, is characterized in that: described handheld computer structure also comprises NAND FLASH flash memory, adopts 2 2GB to form 4GB high speed SLC NAND FLASH chip.
3. a kind of handheld computer based on Godson 1A processor according to claim 1, is characterized in that: described handheld computer structure also comprises DDR storer, adopts 2 16 256MB DDR2 SDRAM, altogether 512MB size.
4. a kind of handheld computer based on Godson 1A processor according to claim 1, is characterized in that: described handheld computer structure also comprises SD card expansion interface.
5. a kind of handheld computer based on Godson 1A processor according to claim 1, it is characterized in that: described handheld computer structure also comprises power module, described power module comprises input circuit, power division part, multichannel DC translation circuit, output protection circuit, indicating circuit, wherein external input voltage direct current+24V, through input circuit, ripple in electrical network and spike are suppressed, and the loss to circuit when providing polar protective circuit to avoid input reverse-connection;
Power division part is mainly used in the normal work preferentially meeting equipment under certain power input condition, then regulates the size of the charging current to battery according to affluence amount, and power input all can be used for the charging to battery when equipment does not work;
Multichannel DC translation circuit is the magnitude of voltage converted to by the cell voltage of input voltage or standby needed for various load, adopts the circuit of synchronous rectification of non-isolated;
Output protection circuit is that when the output terminal on arbitrary road detects overvoltage, protection circuit cuts off the voltage of input end immediately to protect the safety of output terminal load circuit when control chip or power device lost efficacy;
Indicating circuit is used to refer to the power work state such as input voltage, the output of multiple-channel output voltage.
6. a kind of handheld computer based on Godson 1A processor according to claim 5, is characterized in that: described CPU module, power module use paster type encapsulation components and parts.
7., according to the arbitrary described a kind of handheld computer based on Godson 1A processor of claim 1-6, it is characterized in that: described handheld computer shell adopts magnalium housing, and increases protective coating, housing adopts integrated design.
8. a kind of handheld computer based on Godson 1A processor according to claim 7, it is characterized in that: described handheld computer structure also comprises CF interface, the PC CARD I/O pattern CF card interface of a standard is expanded by PCI extended chip PCI1510, CF clamping oralia is connected with mainboard by 80PIN board to board connector, and CF card the 38th pin is for ruining key signal input pin;
CF card the 50th pin is key grouting socket, and this pin is directly guided on outside air plug interface.
9. a kind of handheld computer based on Godson 1A processor according to claim 7, is characterized in that: described handheld computer structure also comprises Big Dipper module interface, for expanding Big Dipper module.
10. a kind of handheld computer based on Godson 1A processor according to claim 7, it is characterized in that: described handheld computer structure also comprises display module, described display module comprises LCDs and touch-screen, LCDs selects 3.5 cun of LCD screen of LED-backlit, and touch-screen adopts surface-mount type four-wire resistive screen.
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| CN201420510326.4U CN204065944U (en) | 2014-09-04 | 2014-09-04 | A kind of handheld computer based on Godson 1A processor |
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| CN201420510326.4U CN204065944U (en) | 2014-09-04 | 2014-09-04 | A kind of handheld computer based on Godson 1A processor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777846A (en) * | 2017-03-28 | 2017-05-31 | 济南浪潮高新科技投资发展有限公司 | A kind of method for designing of cross-layer with reference to management and control impedance |
| CN108611534A (en) * | 2018-03-14 | 2018-10-02 | 广东欧珀移动通信有限公司 | Alloy materials, casings, electronic equipment |
| CN112684745A (en) * | 2020-12-28 | 2021-04-20 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Key device is ruined to low-power consumption |
-
2014
- 2014-09-04 CN CN201420510326.4U patent/CN204065944U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777846A (en) * | 2017-03-28 | 2017-05-31 | 济南浪潮高新科技投资发展有限公司 | A kind of method for designing of cross-layer with reference to management and control impedance |
| CN108611534A (en) * | 2018-03-14 | 2018-10-02 | 广东欧珀移动通信有限公司 | Alloy materials, casings, electronic equipment |
| CN108611534B (en) * | 2018-03-14 | 2019-12-27 | Oppo广东移动通信有限公司 | Alloy material, case, and electronic device |
| CN112684745A (en) * | 2020-12-28 | 2021-04-20 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Key device is ruined to low-power consumption |
| CN112684745B (en) * | 2020-12-28 | 2022-04-29 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Key device is ruined to low-power consumption |
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