CN114063435B - Time synchronization instrument, and clock device detection method and system based on time synchronization instrument - Google Patents
Time synchronization instrument, and clock device detection method and system based on time synchronization instrument Download PDFInfo
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- CN114063435B CN114063435B CN202111365013.5A CN202111365013A CN114063435B CN 114063435 B CN114063435 B CN 114063435B CN 202111365013 A CN202111365013 A CN 202111365013A CN 114063435 B CN114063435 B CN 114063435B
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
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- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
- G04D7/002—Electrical measuring and testing apparatus
- G04D7/003—Electrical measuring and testing apparatus for electric or electronic clocks
Abstract
The invention discloses a time tick, a clock device detection method and a system based on the time tick, wherein the time tick is combined to respectively judge clock source equipment and clock receiving equipment, accurately position fault positions and receive and output time tick information, so that the device is provided with a plurality of types of input and output interfaces and can meet the processing of various time tick faults; the method has strong pertinence and low equipment cost, is suitable for being configured as conventional equipment by teams and groups, does not need to try for many times in the test process, and respectively tests the clock source device or the clock receiving device so as to improve the working efficiency.
Description
Technical Field
The invention relates to the technical field of substation time setting, in particular to a time setting instrument, and a clock device detection method and system based on the time setting instrument.
Background
The device for guaranteeing the time consistency of the equipment in the transformer substation is a synchronous clock device, namely a clock source device, wherein the synchronous clock device firstly synchronizes time with a satellite and then outputs clock signals to each protection device, so that the time consistency among the protection devices is guaranteed. The consistency of time guarantees the logical property of the action time of the protection device, when a tripping accident occurs, the tripping logic can be analyzed through the time sequence of the electronic messages, so that technicians can judge the failure reason and repair the failure in time. The time synchronization of the equipment in the transformer substation is consistent, so that the time data collected by each device is consistent when an accident is released, the sequence of protection actions can be clearly determined from background monitoring when transmission and collection are carried out, and a technician can quickly locate a fault point according to the time logic of each protection outlet, so that the fault is combed from the root and the processing of the fault is accelerated.
At present, a plurality of devices are arranged in a transformer substation, and when the clock device has abnormal time setting, a technician can only carry out fuzzy positioning by replacing a standby output or input interface and then measure the potential through a universal meter so as to judge whether the device interface has a fault; the method is not accurate enough, needs to carry out repeated attempts, causes low working efficiency and is difficult to determine whether the fault occurs, so that the problems can not be effectively solved.
Therefore, an instrument capable of quantitatively measuring device data is needed to assist in judging the fault reason, accelerate time synchronization fault processing and ensure correct time synchronization of the total station equipment.
At present, a plurality of devices are arranged in a transformer substation, and different time synchronization methods such as an electric B code, an optical B code, a GPS and the like appear in the development of the technology. When equipment for time synchronization failure in a transformer substation frequently appears, technicians cannot measure time synchronization information without a manual device, particularly the optical B code time synchronization process cannot be defined in a fuzzy mode by using a potential method, and the efficiency of the technicians for processing the failure is greatly influenced only through experience and attempt.
At present, methods for solving abnormal time synchronization mainly adopt methods such as multimeter potential test, large-scale comprehensive tester test and the like. The large comprehensive tester has large size, high equipment price and complex operation, and is inconvenient to apply in a transformer substation;
the prior art has the following defects:
1) The multimeter tests the potential. When the electric B code in time setting is time setting, a pair of point signals can be transmitted to the protection device from the synchronous clock device, when the time setting is normal, a stable value can be measured through the universal meter, so that the state of the electric B code is judged to be intact, and when the electric B code is relatively failed, the measured value is unstable or even absent. The device for measuring the time synchronization through the electric B code can be simply judged, but the problem that whether the fault point is a time synchronization transmitting device (clock source device) or a time synchronization receiving device cannot be judged exists, and the fault device cannot be determined. In addition, the method cannot measure the optical B code time synchronization device, and has great use limitation.
2) The large-scale comprehensive tester can carry out accurate test box calibration to various time synchronization anomalies, but is bulky, not portable and expensive, is always not conventional equipment in various operation teams, is not always configured, and is not practical in the functional transformer substation.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in view of the fact that the existing potential testing method of the universal meter is complex in process and inaccurate in fault location and can only be used in an electric B code time alignment device when clock equipment in a transformer substation fails, and a large-scale comprehensive tester is large in size, expensive in equipment price, complex in operation and unrealistic in application in the transformer substation, the invention aims to provide a time alignment device, and a clock device detection method and system based on the time alignment device so as to solve the technical problems.
The invention is realized by the following technical scheme:
the scheme provides a clock device detection method based on a time clock, which is applied to a clock receiving device or a clock source device in a transformer substation and comprises the following steps:
enabling the clock source device to send a clock signal to the time tick, and checking the clock signal received by the time tick with the clock signal of the time tick so as to judge whether the clock source device fails or not;
and the time comparing instrument sends a clock signal to the clock receiving device, and the clock signal received by the clock receiving device is checked with the clock signal of the time comparing instrument so as to judge whether the clock receiving device has a fault.
The working principle of the scheme is as follows: when clock equipment in a transformer substation breaks down, the existing potential testing method of the universal meter is complex in process and inaccurate in fault location, and can only be used in an electric B code time alignment device, and a large-scale comprehensive tester is large in size, expensive in equipment price, complex in operation and unrealistic in application in the transformer substation; the scheme provides a clock device detection method based on a time tick, which is characterized in that a clock source device and a clock receiving device are respectively judged by combining the time tick, the fault position is accurately positioned, and time tick information can be received and output, so that the device has a plurality of types of input and output interfaces, and can meet the requirements of processing various time tick faults; the method has strong pertinence and low equipment cost, is suitable for being configured as conventional equipment by teams and groups, does not need to try for many times in the test process, and respectively tests the clock source device or the clock receiving device so as to improve the working efficiency.
The time setting instrument is further provided with a satellite module, and the satellite module enables the clock signal of the time setting instrument to be synchronous with the clock signal of the satellite.
The further optimization scheme is that the checking process comprises the following steps:
the time tick or the clock receiving device decodes the current clock signal after receiving the current clock signal, and then compares the decoded current clock signal with the current clock signal of the time tick to determine whether the decoded current clock signal is consistent with the current clock signal of the time tick, so as to obtain a current time comparison result;
the time tick or the clock receiving device firstly decodes after receiving the next clock signal, and then compares the decoded next clock signal with the next clock signal of the time tick to obtain the comparison result of the next time;
and when the comparison result at the current moment is inconsistent with the comparison result at the next moment, judging that the clock source device or the clock receiving device has faults.
Carrying out a clock receiving device or clock source device checking process, and judging by combining two adjacent clock signals so as to prevent misjudgment; sometimes, the time tick is later to send the clock signal of the last time, when the clock receiving device or the clock source device receives the operation display such as the clock signal decoding of the last time, the time tick is already displayed as the clock signal of the next time, thus the time tick is checked to mistakenly consider that the clock receiving device or the clock source device is in fault, and actually the clock receiving device or the clock source device is not in fault, and by comparing two adjacent clock signals, when at least two comparison results are inconsistent, the fault of the clock receiving device or the clock source device is indicated, so the method effectively improves the accuracy of the detection system.
The scheme also provides a clock device detection system based on the time tick, which is constructed based on the method and comprises a first checking module and a second checking module which are arranged on the time tick;
the clock source device sends a clock signal to the time tick, and the first checking module checks the clock signal with the clock signal of the time tick after receiving the clock signal so as to judge whether the clock source device fails or not;
the clock synchronization instrument sends a clock signal to the clock receiving device, and the second checking module checks the clock signal received by the clock receiving device and the clock signal of the clock synchronization instrument so as to judge whether the clock receiving device fails.
When clock equipment in a transformer substation fails, the potential testing method of the existing multimeter is complex in process, inaccurate in fault location and only capable of being used in an electric B code time alignment device, and a large-scale comprehensive tester is large in size, expensive in equipment price, complex in operation and unrealistic in application to the transformer substation; the scheme provides a clock device detection method based on a time tick, which is characterized in that a clock source device and a clock receiving device are respectively judged by combining the time tick, the fault position is accurately positioned, and time tick information can be received and output, so that the device has a plurality of types of input and output interfaces, and can meet the processing of various time tick faults; the system has strong pertinence and low equipment cost, and is suitable for being used as conventional equipment for configuration in teams and groups.
A first checking module and a second checking module are arranged in a time tick in a transformer substation, and the time tick respectively performs data interaction with a clock source device and a clock receiving device to accurately position a fault position; the time setting instrument is convenient to carry and operate.
The further optimization scheme is that the checking process comprises the following steps:
the time comparing instrument or the clock receiving device decodes the current clock signal after receiving the current clock signal, and the first checking module or the second checking module compares the decoded current clock signal with the current clock signal of the time comparing instrument to determine whether the decoded current clock signal is consistent with the current clock signal of the time comparing instrument, so as to obtain a current time comparison result;
the time tick or the clock receiving device decodes the next clock signal after receiving the next clock signal, and the first check module or the second check module compares the decoded next clock signal with the next clock signal of the time tick to determine whether the decoded next clock signal is consistent with the next clock signal of the time tick to obtain a comparison result at the next moment;
and when the comparison result at the current moment is inconsistent with the comparison result at the next moment, judging that the clock source device or the clock receiving device has faults.
The scheme also provides a time tick which is applied to a clock receiving device or a clock source device in the transformer substation and comprises a detection module and a satellite module; the detection module comprises: the device comprises an optical signal input unit, an electrical signal input unit, a B code generation unit, an electrical signal B code output unit, an optical signal B code output unit and a judgment unit;
the optical signal input unit or the electric signal input unit receives a clock signal A sent by the clock source device, and the judging unit checks the clock signal A and a clock signal of the satellite module to judge whether the clock source device is in fault;
the B code generating unit generates an electric signal B code or an optical signal B code from a clock signal C of the satellite module, the electric signal B code is sent to the clock receiving device through the electric signal B code output unit, and the optical signal B code is sent to the clock receiving device through the optical signal B code output unit; the judging unit is also used for acquiring a clock signal received by the clock receiving device and checking the clock signal with a clock signal C of the satellite module to judge whether the clock receiving device is in fault.
The working principle of the scheme is as follows: according to the scheme, the portable time synchronization instrument is designed according to the clock device detection method and system based on the time synchronization instrument, and the time synchronization instrument is provided with a plurality of types of input and output interfaces; the input/output interface of different grade type, the time device of for the different grade type provides the interactive hardware basis of data, be suitable for simultaneously to light B sign indicating number signal or electric B sign indicating number signal, the throughput to different faults of time instrument has been ensured, the signal interface who adopts each well mode simultaneously sets up one and mainly is equipped with, both can adopt reserve interface when having the interface to damage, also can utilize reserve interface, thereby realize the input/output of double-circuit, thereby it contrasts to close on the data, can reflect the root cause point of trouble deeply more, accelerate the repair work of trouble.
The clock synchronization instrument in the scheme can not only perform clock synchronization, but also serve as a check instrument and a receiver of the clock signal, receives the signal of the clock source device and judges whether the clock source device is abnormal or not, and can also serve as a sender of the clock signal and sends the clock signal to the clock receiving device to judge whether the clock signal is abnormal or not; the judgment principle is simple, and the practicability is high.
The further optimization scheme is that the power supply module, the detection module and the satellite module are all arranged in the shell; the housing comprises a display part and a handheld part which are communicated, and the cross sectional area of the display part is larger than that of the handheld part.
In the transformer substation, carry out clock device testing process among the prior art and need carry a large amount of termination, device of taking out stitches and measuring device, but the time setting appearance of this scheme is hand-holdable, and is small, carries and convenient operation, need not other auxiliary device, improves work efficiency.
The further optimized scheme is that the display part comprises display screens arranged on different planes, a fixing device and an input/output interface; the handheld part comprises an operation key and a charging interface.
The further optimization scheme is that the fixing device comprises a support frame and buckles, and at least two buckles are installed on the shell on the back of the display screen along the horizontal direction or the vertical direction.
The further optimization scheme is that the shell hand-held part is provided with a plurality of concave grains, and the width of the concave part of each concave grain is at least 3.5cm.
The handheld part separates with the display part, and reasonable layout space reduces the volume of whole to the time instrument, and the handheld part of shell sets up the dimpled grain, and the increase friction is portable holds, operates other equipment at the staff and is, can also hang the time instrument on the electronic box cabinet through fixing device.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the clock device detection method and system based on the time tick, provided by the invention, the time tick is combined, the clock source equipment and the clock receiving equipment are respectively judged, the fault position is accurately positioned, and the time tick information can be received and output, so that the device has multiple types of input and output interfaces at the same time, and the processing of various time tick faults can be met; the method has strong pertinence and low equipment cost, is suitable for being configured as conventional equipment by teams and groups, does not need to try for many times in the test process, and respectively tests the clock source device or the clock receiving device so as to improve the working efficiency.
2. The time tick instrument provided by the invention not only can be used for carrying out time tick, but also can be used as a check instrument, can be used as a receiver of a clock signal, receives the signal of a clock source device to judge whether the clock source device is abnormal, and can also be used as a sender of the clock signal to send the clock signal to the clock receiving device to judge whether the clock signal is abnormal; the transformer substation is simple in structure, convenient to carry, applicable to a transformer substation, simple in judgment principle and good in universality.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art may also derive other related drawings based on these drawings without inventive effort. In the drawings:
FIG. 1 is a schematic diagram of a clock device detection system based on a time tick;
FIG. 2 is a schematic diagram of the front structure of the time tick;
FIG. 3 is a schematic side view of the time tick;
fig. 4 is a schematic diagram of the structure of the back of the time tick.
Reference numbers and corresponding part names in the figures:
the clock checking device comprises a shell 1, a display 2, an input/output interface 3, an operation key 4, a charging interface 5, a fixing device 6, a support 61, a buckle 62, a concave pattern 7, a clock checking instrument 8, a first checking module 9, a second checking module 10, a clock source device 11 and a clock receiving device 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and the accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limiting the present invention.
Example 1
The embodiment provides a clock device detection method based on a time tick, which is applied to a clock receiving device or a clock source device in a transformer substation, and comprises the following steps:
enabling the clock source device to send a clock signal to the time tick, and checking the clock signal received by the time tick with the clock signal of the time tick to judge whether the clock source device fails or not;
and the clock tick is enabled to send a clock signal to the clock receiving device, and the clock signal received by the clock receiving device is checked with the clock signal of the clock tick so as to judge whether the clock receiving device fails or not.
The time setting device is provided with a satellite module, and the satellite module enables the clock signal of the time setting device to be synchronous with the clock signal of the satellite.
The checking process comprises the following steps:
the time tick or the clock receiving device decodes the current clock signal after receiving the current clock signal, and then compares the decoded current clock signal with the current clock signal of the time tick to determine whether the decoded current clock signal is consistent with the current clock signal of the time tick, so as to obtain a current time comparison result;
the time tick or the clock receiving device firstly decodes after receiving the next clock signal, and then compares the decoded next clock signal with the next clock signal of the time tick to obtain the comparison result of the next time;
and when the comparison result at the current moment is inconsistent with the comparison result at the next moment, judging that the clock source device or the clock receiving device has faults.
Example 2
As shown in fig. 1, a clock device detection system based on a time tick, which is constructed based on the method of the previous embodiment, includes a first checking module 9 and a second checking module 10 installed on a time tick 8;
the clock source device 11 sends a clock signal to the time tick 8, and the first checking module 9 checks the clock signal with the clock signal of the time tick after receiving the clock signal so as to judge whether the clock source device fails;
the clock comparing device 8 sends a clock signal to the clock receiving device 12, and the second checking module 10 checks the clock signal received by the clock receiving device 12 with the clock signal of the clock comparing device itself to determine whether the clock receiving device is faulty.
The checking process comprises the following steps:
the time tick or the clock receiving device decodes the current clock signal after receiving the current clock signal, and the first check module or the second check module compares the decoded current clock signal with the current clock signal of the time tick to determine whether the decoded current clock signal is consistent with the current clock signal of the time tick, so as to obtain a current time comparison result;
the time tick or the clock receiving device decodes the next clock signal after receiving the next clock signal, and the first check module or the second check module compares the decoded next clock signal with the next clock signal of the time tick to determine whether the decoded next clock signal is consistent with the next clock signal of the time tick to obtain a comparison result at the next moment;
and when the comparison result at the current moment is inconsistent with the comparison result at the next moment, judging that the clock source device or the clock receiving device has faults.
Example 3
The embodiment provides a time tick, which is applied to a clock receiving device or a clock source device in a transformer substation and comprises a detection module and a satellite module; the detection module comprises: the device comprises an optical signal input unit, an electrical signal input unit, a B code generation unit, an electrical signal B code output unit, an optical signal B code output unit and a judgment unit;
the optical signal input unit or the electric signal input unit receives a clock signal A sent by the clock source device, and the judging unit checks the clock signal A and a clock signal of the satellite module to judge whether the clock source device fails;
the B code generating unit generates an electric signal B code or an optical signal B code from a clock signal C of the satellite module, the electric signal B code is sent to the clock receiving device through the electric signal B code output unit, and the optical signal B code is sent to the clock receiving device through the optical signal B code output unit; the judging unit is also used for acquiring the clock signal received by the clock receiving device and checking the clock signal with a clock signal C of the satellite module to judge whether the clock receiving device has a fault.
As shown in fig. 2-4, the device further comprises a housing 1 and a power module, wherein the power module, the detection module and the satellite module are all arranged outside the housing 1; the housing 1 includes a display portion and a hand-held portion which are communicated, and the cross-sectional area of the display portion is larger than that of the hand-held portion.
The display part comprises a display screen 2, a fixing device 6 and an input/output interface 3 which are arranged on different planes; the hand-held portion comprises an operating key 4 and a charging interface 5.
The fixing device 6 comprises a support frame 61 and a buckle 62, and at least two buckles are installed on the shell at the back of the display screen 2 along the horizontal direction or the vertical direction.
The shell hand-held part is provided with a plurality of concave grains 7, and the width of the concave part of each concave grain 7 is at least 3.5cm.
The input/output interface 3 is composed of three types of interfaces of an electric B code, an optical B code and a GPS interface, wherein each type of interface appears in pairs of input and output, and simultaneously, in order to prevent the loss of each type of interface, 6 groups of interfaces are adopted. The device can set time and output the time setting signal to the time setting receiving device to judge whether the receiving device is in fault or not, and the time setting signal sent by the receiving synchronous clock device is compared with the main clock to judge whether the time setting sending device is damaged or not.
The screen display screen is composed of an electronic screen and can display various setting information, in particular time information which is output and input during time synchronization. Is an information presentation and interaction window. And at least 3 operation indicating lamps respectively represent operation, fault and charging so as to assist the judgment of a user through lamplight and display the working state of the equipment.
The operation keys of the handheld part are provided with menu navigation keys which mainly provide functional keys for menu, cursor movement, content adjustment and content confirmation, and the detailed function setting is carried out on the requirements under different time setting conditions by matching with the selection of input level gears, so that the multifunctional function is realized. Corresponding input level facility keys are provided, and different levels can be set, so that the received different time setting information can be analyzed and displayed. Judging the fault of a clock source device; and level setting is carried out on different types of output ports, so that different time synchronization information is output, the requirements of various time synchronization equipment are met, and the fault of the clock receiving device is judged.
The intelligent control system also comprises a mode indicator light which can provide working indication under different modes and indicates the current working mode through the color change of light; different working modes can be provided, and the method is mainly used for matching three different time synchronization interfaces to ensure that the input and output can be effective. The buckle can be fixed with including marginal structure through the triangle knot to guarantee that equipment need not carry out handheld operation for a long time, provide more operation space for the operation personnel. But the support adopts the mosaic structure of rotatable formula, can rotate to hugging closely the equipment back when not using, and the deployable makes it constitute the triangle with equipment and ground on the plane during the use to support equipment, conveniently look over data when the operation, reduce handheld. The device charging port 7 is provided. The device supplies power through built-in lithium cell, and this interface adopts TYPE-C general interface, and this interface is stable, and can find the charging wire at any time the same with the mainstream interface that charges to make things convenient for equipment to forget the unable work of charging.
The embodiment adopts a plastic shell, the overall physical examination and the size of the palm of a hand can be held by a single hand for use, the battery module comprises a lithium battery for the equipment to continue the journey for 3 hours, the requirement of the ordinary work is met, and related interfaces are provided for various different types of time synchronization methods in the transformer substation so as to realize the searching and maintenance work of the fault problem of the time synchronization equipment in the transformer substation.
The time checking instrument of this embodiment provides polymorphic type input/output interface, the input/output interface of different grade type, for the time checking of different grade type provides the interactive mode of data, this has ensured the throughput of this equipment to different faults, a main one has been adopted simultaneously and has been equipped with, both can adopt reserve interface when having the interface to damage, also can utilize reserve interface, thereby realize the input/output of double-circuit, thereby it contrasts to close on the data, can reflect the root cause point of trouble deeply, accelerate the fault repair work.
And setting input and output levels of the time meter and selecting a mode. The structure guarantees the core function of the equipment from the level of a circuit system, and guarantees the matching of receiving or sending different types of data and the data of the time setting equipment which is closed in advance, thereby providing and supporting the multifunctional realization of the equipment.
The buckle at the time instrument back can be fixed equipment under the operation environment of difference, and fixed direction can have more operation spaces when using, and the operation personnel can reduce handheld time, vacates both hands and goes operating device, makes the maintenance process more nimble, indirectly improves maintenance speed.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A clock device detection method based on a time clock is applied to a clock receiving device or a clock source device in a transformer substation, and is characterized by comprising the following steps:
enabling the clock source device to send a clock signal to the time tick, and checking the clock signal received by the time tick with the clock signal of the time tick so as to judge whether the clock source device fails or not;
the time tick is enabled to send a clock signal to the clock receiving device, and the clock signal received by the clock receiving device is checked with the clock signal of the time tick to judge whether the clock receiving device fails or not;
the time-setting instrument is provided with a satellite module, and the satellite module enables the clock signal of the time-setting instrument to be synchronous with the clock signal of the satellite;
the checking process comprises the following steps:
the time tick or the clock receiving device decodes the current clock signal after receiving the current clock signal, and then compares the decoded current clock signal with the current clock signal of the time tick to determine whether the decoded current clock signal is consistent with the current clock signal of the time tick, so as to obtain a current time comparison result;
the time setting instrument or the clock receiving device firstly decodes after receiving the next clock signal, and then compares the decoded next clock signal with the next clock signal of the time setting instrument to determine whether the decoded next clock signal is consistent with the next clock signal of the time setting instrument, so as to obtain a comparison result at the next time;
and when the comparison result at the current moment is inconsistent with the comparison result at the next moment, judging that the clock source device or the clock receiving device has a fault.
2. A clock device detection system based on a time tick, which is constructed based on the method of claim 1 and comprises a first checking module and a second checking module which are arranged on the time tick;
the clock source device sends a clock signal to the time tick, and the first checking module checks the clock signal with the clock signal of the time tick after receiving the clock signal so as to judge whether the clock source device fails or not;
the clock synchronization instrument sends a clock signal to the clock receiving device, and the second checking module checks the clock signal received by the clock receiving device and the clock signal of the clock synchronization instrument so as to judge whether the clock receiving device fails or not;
the checking process comprises the following steps:
the time tick or the clock receiving device decodes the current clock signal after receiving the current clock signal, and the first check module or the second check module compares the decoded current clock signal with the current clock signal of the time tick to determine whether the decoded current clock signal is consistent with the current clock signal of the time tick, so as to obtain a current time comparison result;
the time tick or the clock receiving device decodes the next clock signal after receiving the next clock signal, and the first check module or the second check module compares the decoded next clock signal with the next clock signal of the time tick to determine whether the decoded next clock signal is consistent with the next clock signal of the time tick to obtain a comparison result at the next moment;
and when the comparison result at the current moment is inconsistent with the comparison result at the next moment, judging that the clock source device or the clock receiving device has a fault.
3. A time clock for realizing the clock device detection method based on the time clock of claim 1, wherein the time clock is applied to a clock receiving device or a clock source device in a transformer substation, and comprises a detection module and a satellite module; the detection module comprises: the device comprises an optical signal input unit, an electric signal input unit, a B code generation unit, an electric signal B code output unit, an optical signal B code output unit and a judgment unit;
the optical signal input unit or the electric signal input unit receives a clock signal A sent by the clock source device, and the judging unit checks the clock signal A and a clock signal of the satellite module to judge whether the clock source device fails;
the B code generating unit generates an electric signal B code or an optical signal B code from a clock signal C of the satellite module, the electric signal B code is sent to the clock receiving device from the electric signal B code output unit, and the optical signal B code is sent to the clock receiving device from the optical signal B code output unit; the judging unit is also used for acquiring a clock signal received by the clock receiving device and checking the clock signal with a clock signal C of the satellite module to judge whether the clock receiving device is in fault.
4. A time-comparing instrument according to claim 3, further comprising a casing (1) and a power module, wherein the power module, the detection module and the satellite module are all installed in the casing (1); the housing (1) comprises a display part and a handheld part which are communicated, and the cross-sectional area of the display part is larger than that of the handheld part.
5. A pair of time instruments according to claim 4, characterized in that, the said display part includes the display screen (2), fixing device (6) and input/output interface (3) installed in different planes; the handheld part comprises an operating key (4) and a charging interface (5).
6. A pair of time instruments according to claim 5, characterized in that the fixing device (6) comprises a support (61) and a clasp (62), at least two clasps being mounted on the housing at the back of the display screen in a horizontal or vertical direction.
7. A pair of time instruments according to claim 5, characterised in that the housing handle portion is provided with a plurality of indentations (8), the width of the recessed portion of the indentations being at least 3.5cm.
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