CN204167893U - A kind of Logistics Park apparatus for management of information - Google Patents
A kind of Logistics Park apparatus for management of information Download PDFInfo
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- CN204167893U CN204167893U CN201420587252.4U CN201420587252U CN204167893U CN 204167893 U CN204167893 U CN 204167893U CN 201420587252 U CN201420587252 U CN 201420587252U CN 204167893 U CN204167893 U CN 204167893U
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- controllable silicon
- silicon scr
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- information
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Abstract
The utility model discloses a kind of Logistics Park apparatus for management of information, comprise external interface, described external interface is connected with protection circuit, described protection circuit comprises current-limiting circuit and static leakage circuit, described static leakage circuit comprises the first controllable silicon SCR 1, second controllable silicon SCR 2 and piezo-resistance VSR, be connected between VDD-to-VSS line after the first described controllable silicon SCR 1 and the second controllable silicon SCR 2 are in series, on the common port that one end of described current-limiting circuit is connected to the first controllable silicon SCR 1 and the second controllable silicon SCR 2 and the other end be connected to the ground by piezo-resistance VSR, one end of described current-limiting circuit is also connected with ground capacity C, it connects protection circuit at outside interface, reduce electrostatic to the interference of apparatus for management of information internal electronic device and destruction.
Description
Technical field
The utility model relates to apparatus for management of information field, more particularly, relates to a kind of Logistics Park apparatus for management of information.
Background technology
along with the high speed development of market economy, logistics management becomes an importance of commodity circulation links gradually.How to accelerate the construction of Logistics Park supply chain management platform, support that all kinds of loglstics enterprise relies on Logistics Park to carry out logistics supply chain service, become the focus of the outer focus of attention of Present Domestic.
At present, high-quality, efficiently logistic information management become an important technical of loglstics enterprise high efficiency, low cost operation, and the development of Logistics Information Platform first requirement can carry out Real-time Collection and tracking to various goods logistics information.
In order to realize managing efficiently the information of vehicles of Logistics Park and goods information, apparatus for management of information is utilized to carry out integrated management.For the ease of monitoring vehicle location and cargo location, adopt RF-wise.Utilize radiofrequency signal to cover full Logistics Park to realize monitoring vehicle location and cargo location, because apparatus for management of information is metal shell, in summer or dry season, very easily produce electrostatic, electrostatic to the signal of apparatus for management of information inside and the interference of device extremely strong, because its external interface of apparatus for management of information is many, it is of crucial importance that apparatus for management of information carries out protection in port to electrostatic.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Logistics Park apparatus for management of information, and it connects protection circuit at outside interface, reduces electrostatic to the interference of apparatus for management of information internal electronic device and destruction.
The technical scheme in the invention for solving the above technical problem is:
A kind of Logistics Park apparatus for management of information, comprise external interface, described external interface is connected with protection circuit, described protection circuit comprises current-limiting circuit and static leakage circuit, described static leakage circuit comprises the first controllable silicon SCR 1, second controllable silicon SCR 2 and piezo-resistance VSR, be connected between VDD-to-VSS line after the first described controllable silicon SCR 1 and the second controllable silicon SCR 2 are in series, on the common port that one end of described current-limiting circuit is connected to the first controllable silicon SCR 1 and the second controllable silicon SCR 2 and the other end be connected to the ground by piezo-resistance VSR, one end of described current-limiting circuit is also connected with ground capacity C.
As preferably, described current-limiting circuit is resistance R.
Further, the Standard resistance range of described resistance R is 2 kilohms-5 kilohms.
As preferably, the capacitance of described electric capacity C is 4 pico farad-8 pico farads.
As preferably, the first described controllable silicon SCR 1 and the second controllable silicon SCR 2 are MCC56-16IO1B.
To sum up, the beneficial effects of the utility model are:
1, electrostatic interaction of the present utility model is when external interface, and when electrostatic potential reaches certain value, the first controllable silicon SCR 1 and the second controllable silicon SCR 2 pairs of electrostatic are released, and forms external interface to ground or external interface to the path of power supply, namely to electrostatic leakage.
2, the other end of pressure limiting circuit of the present utility model is connected with piezo-resistance VSR; first controllable silicon SCR 1 and the second controllable silicon SCR 2 are incomplete by electrostatic leakage, and when namely the voltage at piezo-resistance VSR two ends is greater than certain value, its resistance diminishes; again electrostatic is released, improve protected effect.
3, the utility model utilizes the first controllable silicon SCR 1 and the second controllable silicon SCR 2 to release for the first time, and recycling piezo-resistance VSR carries out secondary to electrostatic and releases, and utilizes current-limiting circuit to protect apparatus for management of information internal circuit, and its protective action is strong.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but execution mode of the present utility model is not limited thereto.
Embodiment:
A kind of Logistics Park apparatus for management of information as shown in Figure 1, comprise external interface, described external interface is connected with protection circuit, described protection circuit comprises current-limiting circuit and static leakage circuit, described static leakage circuit comprises the first controllable silicon SCR 1, second controllable silicon SCR 2 and piezo-resistance VSR, be connected between VDD-to-VSS line after the first described controllable silicon SCR 1 and the second controllable silicon SCR 2 are in series, on the common port that one end of described current-limiting circuit is connected to the first controllable silicon SCR 1 and the second controllable silicon SCR 2 and the other end be connected to the ground by piezo-resistance VSR, one end of described current-limiting circuit is also connected with ground capacity C.
Protection circuit of the present utility model is connected between external interface and internal components.Apparatus for management of information and external equipment carry out signal transmission, and electric capacity C first carries out filtering to signal.The voltage strength of electrostatic is high, utilizes current-limiting circuit to limit the circuit flowing into apparatus for management of information inside, avoids the excessive device to apparatus for management of information inside of electric current to damage.
The utility model adopts the first controllable silicon SCR 1 and the second controllable silicon SCR 2 as first path of electrostatic leakage, is also main path of releasing.Control machines depends on the voltage difference size at two ends, and when apparatus for management of information normally works, signal voltage amplitude is difficult to trigger controlled silicon conducting, namely adopts controllable silicon effect electrostatic leakage element, can not affect the normal transmission of apparatus for management of information signal.When electrostatic interaction is in external interface; when electrostatic potential reaches the trigger value of the first controllable silicon SCR 1 and the second controllable silicon SCR 2; form external interface to ground or external interface to the path of power supply; namely no matter the electrical of electrostatic potential all can be released to it; the device of protection information management devices, avoids signal transmission to be interfered.
Complete in order to ensure electrostatic leakage, connect piezo-resistance VSR in one end of current-limiting circuit and to release path as auxiliary electrostatic.When the voltage of one end of current-limiting circuit is greater than certain value, the resistance of piezo-resistance VSR diminishes, and can release to electrostatic.
Namely current-limiting circuit limits the size of current that external interface flows in apparatus for management of information, adopt resistance R as current-limiting circuit, namely direct resistance R is connected between external interface and the internal components of apparatus for management of information, when electrostatic is excessive, according to the relation of voltage, electric current and resistance three, namely when voltage is certain, resistance is larger, electric current is less, namely adopts the resistance of large resistance to play metering function, therefore the Standard resistance range of resistance R is 2 kilohms-5 kilohms.
The capacitance of described electric capacity C is 4 pico farad-8 pico farads.As a concrete execution mode, electric capacity C can preferably 5 pico farads, and the first described controllable silicon SCR 1 and the second controllable silicon SCR 2 are MCC56-16IO1B.
As mentioned above, the utility model can be realized preferably.
Claims (5)
1. a Logistics Park apparatus for management of information, comprise external interface, it is characterized in that: described external interface is connected with protection circuit, described protection circuit comprises current-limiting circuit and static leakage circuit, described static leakage circuit comprises the first controllable silicon SCR 1, second controllable silicon SCR 2 and piezo-resistance VSR, be connected between VDD-to-VSS line after the first described controllable silicon SCR 1 and the second controllable silicon SCR 2 are in series, on the common port that one end of described current-limiting circuit is connected to the first controllable silicon SCR 1 and the second controllable silicon SCR 2 and the other end be connected to the ground by piezo-resistance VSR, one end of described current-limiting circuit is also connected with ground capacity C.
2. a kind of Logistics Park apparatus for management of information according to claim 1, is characterized in that: described current-limiting circuit is resistance R.
3. a kind of Logistics Park apparatus for management of information according to claim 2, is characterized in that: the Standard resistance range of described resistance R is 2 kilohms-5 kilohms.
4. a kind of Logistics Park apparatus for management of information according to claim 1, is characterized in that: the capacitance of described electric capacity C is 4 pico farad-8 pico farads.
5. a kind of Logistics Park apparatus for management of information according to claim 1, is characterized in that: the first described controllable silicon SCR 1 and the second controllable silicon SCR 2 are MCC56-16IO1B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420587252.4U CN204167893U (en) | 2014-10-13 | 2014-10-13 | A kind of Logistics Park apparatus for management of information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420587252.4U CN204167893U (en) | 2014-10-13 | 2014-10-13 | A kind of Logistics Park apparatus for management of information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204167893U true CN204167893U (en) | 2015-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420587252.4U Expired - Fee Related CN204167893U (en) | 2014-10-13 | 2014-10-13 | A kind of Logistics Park apparatus for management of information |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204167893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242288A (en) * | 2014-10-13 | 2014-12-24 | 成都汉康信息产业有限公司 | Anti-interference logistics park information management unit |
-
2014
- 2014-10-13 CN CN201420587252.4U patent/CN204167893U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242288A (en) * | 2014-10-13 | 2014-12-24 | 成都汉康信息产业有限公司 | Anti-interference logistics park information management unit |
| CN104242288B (en) * | 2014-10-13 | 2017-04-19 | 成都汉康信息产业有限公司 | Anti-interference logistics park information management unit |
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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: 20150218 Termination date: 20191013 |