CN205229726U - Agricultural quick -witted intelligent terminal's PCB layout structure - Google Patents
Agricultural quick -witted intelligent terminal's PCB layout structure Download PDFInfo
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- CN205229726U CN205229726U CN201521103835.6U CN201521103835U CN205229726U CN 205229726 U CN205229726 U CN 205229726U CN 201521103835 U CN201521103835 U CN 201521103835U CN 205229726 U CN205229726 U CN 205229726U
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Abstract
The utility model discloses an agricultural quick -witted intelligent terminal's PCB layout structure, wherein PCB adopts 4 layers of stacked structure design, and from the top down is the top layer components and parts in proper order and walks line layer, horizon layer, power planar layer and bottom and walk the line layer, top layer components and parts and walk the line layer and be provided with printed wire and corresponding components and parts, the horizon layer is equipped with ground wire and ground wire interface, the power planar layer is equipped with system power supply's power cord, the bottom is walked the line layer and is equipped with printed wire and test point. The utility model discloses can make agricultural locomotive carry mutual interference minimizing between the inside high frequency signal of communication, tracking device entire system under abominable agricultural machinery environment and low frequency signals, digital circuit and the analog circuit, guarantee that whole equipment can move for a long time reliably.
Description
Technical field
The utility model relates to a kind of PCB layout structure of agricultural machine intelligent terminal.
Background technology
The hardware components of agricultural vehicle carrier communication, tracking equipment is made up of GPS module, GSM/GPRS communication module, micro controller module, digital data acquisition unit and analog acquisition unit usually.In whole system, existing high-frequency signal is as gps signal and GSM signal, also has digital high frequency signals as microcontroller clock signal, also has the low speed signal of some analog or digitals in addition as analog input signal and On-off signal signal.Irrational hardware circuit PCB layout can cause, and interfere with each other, to such an extent as to equipment cannot reliability service between signal.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of PCB layout structure of agricultural machine intelligent terminal.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a PCB layout structure for agricultural machine intelligent terminal, wherein PCB adopts 4 multilayer laminated structure designs, and is followed successively by top layer components and parts and routing layer, ground plane layer, power plane layer and bottom routing layer from top to bottom;
Top layer components and parts and routing layer are provided with printed wire and corresponding components and parts;
Ground plane layer is provided with ground wire and interface of the ground wire;
Power plane layer is provided with the power lead of system power supply;
Bottom routing layer is provided with printed wire and test point.
As preferably, the power lead of system power supply is respectively 2.8V, 3.2V and 5V.
As preferably, components and parts comprise micro controller module, Switching Power Supply, GPS module, GSM/GPRS module, LED light, battery socket and communication test stand.
As preferably, on top layer components and parts and routing layer, micro controller module is arranged on central authorities, GPS module, GSM/GPRS module are separately positioned on the left and right sides, below, wherein the distance of GSM/GPRS module and Switching Power Supply arranges far away as far as possible, and battery socket and communication test stand are arranged on below center section.
The beneficial effects of the utility model are:
Agricultural locomotive carrier communication, tracking equipment whole system internal high frequency signal and low frequency signal, mutual minimum interference between digital circuit and mimic channel under severe agricultural machinery environment can be made, ensure that whole equipment can run stably in a long term.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the PCB layout structure embodiment of the utility model agricultural machine intelligent terminal.
Mark in figure, 1-ground floor Copper Foil, 2-ground floor medium, 3-second layer Copper Foil, 4-second layer medium, 5-third layer Copper Foil, 6-third layer medium, 7-the 4th layer of Copper Foil.
Fig. 2 is the top layer PCB hardware circuit module schematic layout pattern of the PCB layout structure embodiment of the utility model agricultural machine intelligent terminal.
Fig. 3 is the agricultural machine intelligent terminal circuit module configuration diagram of the PCB layout structure embodiment of the utility model agricultural machine intelligent terminal.
Embodiment
The hardware components of general agricultural machinery vehicle-carrying communication, tracking equipment is made up of GPS module, GSM/GPRS communication module, micro controller module and peripheral circuit thereof, digital data acquisition unit and analog acquisition unit, external interface circuit and DC/DC and charging and discharging lithium battery management circuit etc.
Pcb board for above-mentioned agricultural machinery vehicle-carrying communication, tracking equipment adopts 4 multilayer laminated structure designs, is followed successively by top layer components and parts and routing layer, ground plane layer, power plane layer and bottom routing layer from top to bottom.
Above-mentioned top layer components and parts and routing layer, ground plane layer, power plane layer and bottom routing layer are by following setting:
1) top layer components and parts and routing layer are used for arranging printed wire and corresponding components and parts;
2) ground plane layer is used for arranging ground wire and interface of the ground wire;
3) power plane layer is for arranging the power lead of system power supply 2.8V, 3.2V and 5V;
4) bottom routing layer is used for arranging printed wire and test point.
Fig. 1 is the concrete structure of the PCB of the present embodiment, wherein:
Ground floor Copper Foil 1 is 0.5OZ, as top layer components and parts and routing layer; The ground floor medium 2 of here to be thickness be 0.22mm;
Second layer Copper Foil 3 is 1OZ, as ground plane layer; Here is second layer medium 4;
Third layer Copper Foil 5 is 1OZ, as power plane layer; The third layer medium 6 of here to be thickness be 0.22mm;
4th layer of Copper Foil 7 is electroplated onto 1OZ for 0.5OZ(), as bottom routing layer.
Because the size of the PCB of the present embodiment is enough large, at PCB top layer one side, can whole devices be rationally set, can effectively saves paster operation and cost like this.
1, top layer layout: adopt one side modes of emplacement, concrete layout is as follows:
1) first microcontroller and peripheral circuit thereof are placed on the position of PCB top central side on the upper side, make the wiring of micro controller module and other modules the most convenient the shortest with route;
2) Switching Power Supply is as the maximum interference source of internal system, is placed on top layer upper left side, and next-door neighbour's sheet frame is placed, and can reduce the interference of switching frequency to system so as far as possible, can, effectively toward outside heat radiation, prevent thermal source from interfering with other devices again;
3) left and right sides below top layer GSM/GPRS module and GPS module being placed on PCB.GPS module is placed on the left lower side of top layer, isolates with independent ground wire, and places near antenna socket, makes the signal of GPS receiving antenna can not be subject to conduction and the coupled interference of other signal, thus ensures the location sensitivity of GPS module;
4) GSM/GPRS module is tried one's best and GPS module, Switching Power Supply apart distance, and the radio frequency part of GSM/GPRS module should be placed on the edge of pcb board towards sheet frame, and such GSM antenna radio-frequency signal will reduce the interference of whole system.
5) LED of equipment, battery socket and communication test stand are all placed into the edge of pcb board according to rational layout, can facilitate the application of product like this, whole product seems also attractive in appearance.
2, ground plane layer layout and power plane layer.Realize good undesired signal shielding with the shielding action of power plane layer with make use of internal layer.
3, bottom wiring instruction: place because top layer have employed one side, bottom does not have other devices, but is placed on bottom by the test point that cloth bundle of lines is all, both can facilitate the automatic test that product is produced in batches, not affect again the device of patch.
Fig. 2 is agricultural machine intelligent terminal hardware circuit module schematic layout pattern on top layer pcb board, wherein the below of pcb board is provided with jack interface, the gps antenna stand annex of GPS module near lower left is placed, below center section places external interface circuit, GSM/GPRS module is placed in lower right, Switching Power Supply is positioned over the upper left corner, and microcontroller is positioned over centre position.
Fig. 3 is the circuit module configuration diagram of agricultural machine intelligent terminal, can find out the rationality of above-mentioned layout from Organization Chart.As microprocessor place in the middle of the convenient cabling to all modules, GPS module and GSM/GPRS module are placed near corresponding antenna connector, can reduce the loss of antenna, again can away from the interference of power supply,
Above-described the utility model embodiment, does not form the restriction to the utility model protection domain.Any do within spirit of the present utility model and principle amendment, equivalent to replace and improvement etc., all should be included within claims of the present utility model.
Claims (4)
1. a PCB layout structure for agricultural machine intelligent terminal, is characterized in that: described PCB adopts 4 multilayer laminated structure designs, and is followed successively by top layer components and parts and routing layer, ground plane layer, power plane layer and bottom routing layer from top to bottom;
Described top layer components and parts and routing layer are provided with printed wire and corresponding components and parts;
Described ground plane layer is provided with ground wire and interface of the ground wire;
Described power plane layer is provided with the power lead of system power supply;
Described bottom routing layer is provided with printed wire and test point.
2. the PCB layout structure of agricultural machine intelligent terminal according to claim 1, is characterized in that: the power lead of described system power supply is respectively 2.8V, 3.2V and 5V.
3. the PCB layout structure of agricultural machine intelligent terminal according to claim 1, is characterized in that: described components and parts comprise micro controller module, Switching Power Supply, GPS module, GSM/GPRS module, LED light, battery socket and communication test stand.
4. the PCB layout structure of agricultural machine intelligent terminal according to claim 2, it is characterized in that: on described top layer components and parts and routing layer, micro controller module is arranged on central authorities, GPS module, GSM/GPRS module are separately positioned on the left and right sides, below, wherein the distance of GSM/GPRS module and Switching Power Supply arranges far away as far as possible, and battery socket and communication test stand are arranged on below center section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103835.6U CN205229726U (en) | 2015-12-24 | 2015-12-24 | Agricultural quick -witted intelligent terminal's PCB layout structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103835.6U CN205229726U (en) | 2015-12-24 | 2015-12-24 | Agricultural quick -witted intelligent terminal's PCB layout structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205229726U true CN205229726U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521103835.6U Expired - Fee Related CN205229726U (en) | 2015-12-24 | 2015-12-24 | Agricultural quick -witted intelligent terminal's PCB layout structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN205229726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114501796A (en) * | 2022-01-12 | 2022-05-13 | 中国第一汽车股份有限公司 | Vehicle-mounted gateway printed circuit board |
-
2015
- 2015-12-24 CN CN201521103835.6U patent/CN205229726U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114501796A (en) * | 2022-01-12 | 2022-05-13 | 中国第一汽车股份有限公司 | Vehicle-mounted gateway printed circuit board |
| CN114501796B (en) * | 2022-01-12 | 2024-05-03 | 中国第一汽车股份有限公司 | Vehicle-mounted gateway printed circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20171224 |