CN203623713U - Special timing device for LKJ device - Google Patents
Special timing device for LKJ device Download PDFInfo
- Publication number
- CN203623713U CN203623713U CN201320846017.XU CN201320846017U CN203623713U CN 203623713 U CN203623713 U CN 203623713U CN 201320846017 U CN201320846017 U CN 201320846017U CN 203623713 U CN203623713 U CN 203623713U
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- Prior art keywords
- clock
- microcontroller
- circuit
- lkj
- standard
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 239000004973 liquid crystal related substance Substances 0.000 abstract 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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Abstract
A special timing device comprises a microcontroller, a power supply circuit, a liquid crystal display screen and a key, wherein the power supply circuit, the liquid crystal display screen and the key are connected with the microcontroller. The microcontroller is further connected with at least two clock chips and an external communication circuit which is in communication with a standard master clock. According to the technical scheme, the two clock chips are adopted, accuracy of the clock of the timing device is ensured, standard clock information is provided for timing conducted on the LKJ device, and therefore the reliable safety monitoring guarantee is provide for running of a whole railway.
Description
Technical field
The utility model relates to a kind of special time corrector when locomotive LKJ equipment is carried out to school.
Background technology
LKJ equipment refers to train operation monitoring and recording device.
Along with the high speed development of railway cause, the monitoring accuracy requirement of safety apparatus is more and more higher, improve the monitoring precision of safety apparatus, become railway scientific and technical personnel's a vital task, and the time error of minimizing control monitor unit is an effective way that guarantees the normal work of monitoring and raising monitoring precision.
At present, also do not have a set of equipment to carry out precision time service to locomotive LKJ equipment.
Utility model content
Thereby a kind of method when accurately improving the special time corrector of monitoring precision when the purpose of this utility model is to provide school and utilizing time corrector to carry out school to LKJ equipment.
For achieving the above object, the utility model is by the following technical solutions:
A kind of special time corrector, power circuit, LCDs and button that it comprises microcontroller and is connected with microcontroller, is characterized in that: the external communication circuit that described microcontroller is also connected with at least two clock chips and communicates with standard mother clock.
Described external communication circuit comprises RS232 circuit and coupled protective circuit.
Described microcontroller is also connected with timing circuit.
Adopt the utility model of technique scheme, it adopts doubleclocking chip, has first guaranteed the precision of time corrector clock, provides standard time clock information when LKJ equipment is carried out to school, thereby has ensured for whole railway operation provides failure-free security monitoring.
Accompanying drawing explanation
Fig. 1 is the hardware principle block diagram of special time corrector in the utility model.
The specific embodiment
As shown in Figure 1, a kind of special time corrector, power circuit, LCDs and button that it comprises microcontroller and is connected with microcontroller, the external communication circuit that described microcontroller is also connected with at least two clock chips and communicates with standard mother clock, take two built-in clock chips as preferred forms.Wherein, each clock chip is sent into temporal information separately in microcontroller respectively, and microcontroller calculates the clock difference of two clock chips, and clock difference and threshold value are compared, and threshold value is: 10 days errors of clock chip are less than 3 seconds.If exceed this threshold value, microcontroller output information, reminds operating personnel again to obtain the standard time to standard mother clock equipment, and operation while forbidding LKJ equipment to carry out school.
Above-mentioned external communication circuit comprises RS232 circuit and coupled protective circuit.
Microcontroller is also connected with timing circuit, special time corrector in the time that the number of days that exceedes setting does not obtain the standard time from standard mother clock equipment, microcontroller output information, and operation while forbidding LKJ equipment to carry out school.
Claims (3)
1. a special time corrector, power circuit, LCDs and button that it comprises microcontroller and is connected with microcontroller, is characterized in that: the external communication circuit that described microcontroller is also connected with at least two clock chips and communicates with standard mother clock.
2. special time corrector according to claim 1, is characterized in that: described external communication circuit comprises RS232 circuit and coupled protective circuit.
3. special time corrector according to claim 1, is characterized in that: described microcontroller is also connected with timing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320846017.XU CN203623713U (en) | 2013-12-20 | 2013-12-20 | Special timing device for LKJ device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320846017.XU CN203623713U (en) | 2013-12-20 | 2013-12-20 | Special timing device for LKJ device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203623713U true CN203623713U (en) | 2014-06-04 |
Family
ID=50810216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320846017.XU Expired - Lifetime CN203623713U (en) | 2013-12-20 | 2013-12-20 | Special timing device for LKJ device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203623713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404138A (en) * | 2016-01-07 | 2016-03-16 | 吉林市盈冲科技有限公司 | Time service method of locomotive LKJ device |
-
2013
- 2013-12-20 CN CN201320846017.XU patent/CN203623713U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404138A (en) * | 2016-01-07 | 2016-03-16 | 吉林市盈冲科技有限公司 | Time service method of locomotive LKJ device |
| CN105404138B (en) * | 2016-01-07 | 2018-04-10 | 吉林市盈冲科技有限公司 | A kind of time service method of locomotive LKJ devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |