CN221227536U - Detection equipment for logging instrument bus - Google Patents
Detection equipment for logging instrument bus Download PDFInfo
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- CN221227536U CN221227536U CN202323196014.9U CN202323196014U CN221227536U CN 221227536 U CN221227536 U CN 221227536U CN 202323196014 U CN202323196014 U CN 202323196014U CN 221227536 U CN221227536 U CN 221227536U
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Abstract
The utility model discloses detection equipment for a logging instrument bus, and relates to the technical field of petroleum logging instruments. The utility model provides detection equipment of a logging instrument bus, which is characterized in that a signal transmitter and a signal receiver are respectively used for connecting two ends of each cable core in the logging instrument bus and are used for communicating the cable cores, and when the signal transmitter transmits a test signal through a tested cable core, other cable cores except the tested cable core and the tested cable core form a loop. The indicator is at least one of the signal transmitter and the signal receiver, and the indicator can display the communication state of the corresponding loop of each cable core through the unidirectional conduction device, so that the state of the logging instrument bus can be simply, quickly and accurately detected.
Description
Technical Field
The utility model relates to the technical field of petroleum logging instruments, in particular to detection equipment for a logging instrument bus.
Background
Logging is an important subsurface geologic information acquisition technique in petroleum exploration and development. Logging instruments are typically connected by a multi-core bus for transmitting various measurement data and control signals.
However, due to the complicated underground environment and long-term use of the logging instrument, the bus cable may be disconnected, the wire sequence is disordered, or the cable loss causes poor communication quality, if the quality of the bus cable is not detected when the logging instrument is used, the stability and reliability of the bus of the logging instrument cannot be ensured, so that the accuracy and reliability of logging data are affected.
In view of the foregoing, it would be desirable to find a detection apparatus that can simply, quickly and accurately detect a logging instrument bus.
Disclosure of utility model
The utility model aims to provide detection equipment for a logging instrument bus, which is used for solving the problem of low logging data accuracy and reliability of the current logging instrument.
In order to solve the above technical problems, the present utility model provides a detection apparatus for a logging instrument bus, including: a signal transmitter, a signal receiver, and an indicator;
The signal transmitter and the signal receiver are respectively used for connecting two ends of each cable core in the logging instrument bus and communicating the cable cores, and when the signal transmitter transmits a test signal through the tested cable core, other cable cores except the tested cable core and the tested cable core form a loop;
the indicator is present in at least one of the signal transmitter and the signal receiver;
If the indicator exists in the signal transmitter, the signal transmitter comprises a first unidirectional conduction device and a second unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the first unidirectional conduction device, the second unidirectional conduction device and the indicator of the cable core; the first unidirectional conduction device and the indicator are mutually connected in series, and the series structure and the second unidirectional conduction device are connected in parallel between a signal transmission interface of a corresponding cable core in the signal transmitter and the corresponding cable core; the unidirectional conduction direction of the first unidirectional conduction device and the unidirectional conduction direction of the second unidirectional conduction device in the parallel structure are opposite;
If the indicator exists in the signal receiver, the signal receiver comprises a third unidirectional conduction device and a fourth unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the third unidirectional conduction device, the fourth unidirectional conduction device and the indicator of the cable core; the third unidirectional conduction device and the indicator are mutually connected in series, and the series structure and the fourth unidirectional conduction device are connected in parallel between a common end of each cable core connection in the signal receiver and the corresponding cable core; the third unidirectional conduction device and the fourth unidirectional conduction device are opposite in unidirectional conduction direction in the parallel structure.
Preferably, the input end of the first unidirectional conduction device, the output end of the second unidirectional conduction device and the signal transmission interface corresponding to the cable core in the signal transmitter are connected with each other, and the output end of the first unidirectional conduction device, the input end of the second unidirectional conduction device and the corresponding cable core are connected with each other; the indicator and the first unidirectional conduction device are connected in series between a signal transmission interface of a corresponding cable core in the signal transmitter and the corresponding cable core.
Preferably, the input end of the third unidirectional conduction device, the output end of the fourth unidirectional conduction device and the corresponding cable core are connected with each other, and the output end of the third unidirectional conduction device and the input end of the fourth unidirectional conduction device are connected with each other to serve as a common end for connecting each cable core in the signal receiver; the indicator and the third unidirectional conduction device are connected in series between the common end of each cable core connection in the signal receiver and the corresponding cable core.
Preferably, the indicator is present in both the signal transmitter and the signal receiver.
Preferably, each unidirectional conducting device is embodied as a diode; the anode of the diode is used as the input end of the unidirectional conduction device, and the cathode of the diode is used as the output end of the unidirectional conduction device.
Preferably, the signal transmitter is mounted at the upper end of the logging instrument and the signal receiver is mounted at the lower end of the logging instrument when the logging instrument bus is tested in an actual logging scenario.
Preferably, the indicator is in particular an indicator light.
Preferably, the method further comprises: a display panel;
each indicator light is arranged in the display panel.
Preferably, the indicator is embodied as a buzzer.
The utility model provides detection equipment of a logging instrument bus, which is characterized in that a signal transmitter and a signal receiver are respectively used for connecting two ends of each cable core in the logging instrument bus and are used for communicating the cable cores, and when the signal transmitter transmits a test signal through a tested cable core, other cable cores except the tested cable core and the tested cable core form a loop. The indicator is at least one of the signal transmitter and the signal receiver; if the indicator exists in the signal transmitter, the signal transmitter comprises a first unidirectional conduction device and a second unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the first unidirectional conduction device, the second unidirectional conduction device and the indicator respectively; the first unidirectional conduction device and the indicator are mutually connected in series, and the serial structure and the second unidirectional conduction device are connected in parallel between a signal transmission interface of a corresponding cable core in the signal transmitter and the corresponding cable core; the first unidirectional conduction device and the second unidirectional conduction device are opposite in unidirectional conduction direction in the parallel structure. If the indicator exists in the signal receiver, the signal receiver comprises a third unidirectional conduction device and a fourth unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the third unidirectional conduction device, the fourth unidirectional conduction device and the indicator respectively; the third unidirectional conducting device and the indicator are mutually connected in series, and the serial structure and the fourth unidirectional conducting device are connected in parallel between the common end of each cable core connection in the signal receiver and the corresponding cable core; the third unidirectional conduction device and the fourth unidirectional conduction device are opposite in unidirectional conduction direction in the parallel structure. When in test, the signal transmitter transmits square wave signals, if the tested cable core is normal and at least one cable core in the other cable cores is normal, the signals reach the signal receiver through the tested cable core, and enter the normal other cable cores through the public end connected with each cable core to return to the signal transmitter. If the tested cable core is abnormal, the current test loop cannot be communicated, and the signal cannot be successfully returned to the signal transmitter. If only one normal cable core exists in all cable cores or no normal cable core exists, all tested loops cannot be communicated. Therefore, the state of the loop communication is displayed through the indicator, and the state of the logging instrument bus can be simply, rapidly and accurately detected.
Drawings
For a clearer description of embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram illustrating the structural components of a detection device for a logging instrument bus according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a testing principle of a testing device for a logging instrument bus according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a specific circuit structure of a detection device for a logging instrument bus according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a signal transmitter according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a signal receiver according to an embodiment of the present utility model.
The reference numerals are as follows: the LED signal transmission device comprises a signal transmitter 1, a signal receiver 2, a logic transmission circuit 3, an LED transmission indication panel 4, an upper end test connector 5, a lower end test connector 6, an LED reception indication panel 7, a logic reception circuit 8 and a battery 9.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without making any inventive effort are within the scope of the present utility model.
The utility model aims at providing detection equipment for a logging instrument bus so as to solve the problem of low logging data accuracy and reliability of the current logging instrument.
In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.
Typically, the detection of the logging instrument bus typically requires manual operation, which is time consuming and inefficient; and generally depends on complex test equipment and professional technicians, and has complicated operation; in the detection process, the detection precision of the bus line sequence and the communication quality is limited, and the bus line sequence fault is difficult to accurately judge.
In order to solve the technical problems, an embodiment of the utility model provides detection equipment for a logging instrument bus, which comprises a signal transmitter, a signal receiver and an indicator. The signal transmitter and the signal receiver are respectively used for connecting two ends of each cable core in the logging instrument bus and are used for communicating the cable cores, and when the signal transmitter transmits a test signal through the tested cable core, other cable cores except the tested cable core and the tested cable core form a loop. The indicator is present in at least one of the signal transmitter and the signal receiver. If the indicator exists in the signal transmitter, the signal transmitter comprises a first unidirectional conduction device and a second unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the first unidirectional conduction device, the second unidirectional conduction device and the indicator respectively; the first unidirectional conduction device and the indicator are mutually connected in series, and the serial structure and the second unidirectional conduction device are connected in parallel between a signal transmission interface of a corresponding cable core in the signal transmitter and the corresponding cable core; the first unidirectional conduction device and the second unidirectional conduction device are opposite in unidirectional conduction direction in the parallel structure. If the indicator exists in the signal receiver, the signal receiver comprises a third unidirectional conduction device and a fourth unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the third unidirectional conduction device, the fourth unidirectional conduction device and the indicator respectively; the third unidirectional conducting device and the indicator are mutually connected in series, and the serial structure and the fourth unidirectional conducting device are connected in parallel between the common end of each cable core connection in the signal receiver and the corresponding cable core; the third unidirectional conduction device and the fourth unidirectional conduction device are opposite in unidirectional conduction direction in the parallel structure.
The function of each one-way conduction device is to ensure that when the tested cable core is tested, the one-way conduction device conducted on the line of the tested cable core is different from the one-way conduction devices conducted on the lines of the other cable cores, so that the indicator corresponding to the tested cable core and the indicator corresponding to the other cable cores display different results, and the state of the tested cable core is obtained through the display result of the indicator corresponding to the tested cable core.
As mentioned above, the unidirectional conduction direction of the first unidirectional conduction device and the unidirectional conduction direction of the second unidirectional conduction device in the parallel structure are opposite, and the unidirectional conduction direction of the third unidirectional conduction device and the unidirectional conduction direction of the fourth unidirectional conduction device in the parallel structure are opposite; the specific direction of each unidirectional conductive device is not limited. One of the schemes is that the input end of the first unidirectional conducting device, the output end of the second unidirectional conducting device and the signal transmitting interface of the corresponding cable core in the signal transmitter are mutually connected, the output end of the first unidirectional conduction device, the input end of the second unidirectional conduction device and the corresponding cable core are connected with each other; the indicator and the first unidirectional conduction device are connected in series between a signal transmission interface of a corresponding cable core in the signal transmitter and the corresponding cable core. The input end of the third unidirectional conduction device, the output end of the fourth unidirectional conduction device and the corresponding cable core are connected with each other, and the output end of the third unidirectional conduction device and the input end of the fourth unidirectional conduction device are connected with each other to serve as a common end for connecting each cable core in the signal receiver; the indicator and the third unidirectional conducting device are connected in series between the common end of each cable core connection in the signal receiver and the corresponding cable core. In the specific implementation, the specific structures of the signal transmitter and the signal receiver, the types of the indicators, and the like are not limited; for example, the unidirectional conductive device may be a Diode, and the indicator may be a Light-Emitting Diode (LED) or a buzzer, etc. When the bus of the logging instrument is tested in an actual logging scene, a signal transmitter is installed at the upper end of the logging instrument, and a signal receiver is installed at the lower end of the logging instrument.
FIG. 1 is a schematic diagram illustrating the structural components of a detection device for a logging instrument bus according to an embodiment of the present utility model; as shown in fig. 1, the device comprises a signal transmitter 1, a signal receiver 2, a logic transmitting circuit 3, an LED transmitting indication panel 4, an upper test connector 5, a lower test connector 6, an LED receiving indication panel 7 and a logic receiving circuit 8. The signal transmitter 1 comprises a logic transmitting circuit 3, an LED transmitting indication panel 4 and an upper test connector 5, wherein the upper test connector 5 is used for connecting one end of a multi-core bus to be tested. The signal receiver 2 comprises a lower-end test connector 6, an LED receiving indication panel 7 and a logic receiving circuit 8; the lower test connector 6 is used for connecting the other end of the multi-core bus to be tested. The LED transmission indication panel 4 and the LED reception indication panel 7 are respectively used for displaying the results of the LEDs.
FIG. 2 is a schematic diagram of a testing principle of a testing device for a logging instrument bus according to an embodiment of the present utility model; as shown in fig. 2, the signal transmitter 1 and the signal receiver 2 are respectively used for connecting two ends of each cable core in the logging instrument bus, and are used for communicating the cable cores, and when the signal transmitter 1 transmits a test signal through the cable core to be tested, other cable cores except the cable core to be tested and the cable core to be tested form a loop.
Taking the specific scheme mentioned in the above embodiment as an example for illustration, fig. 3 is a schematic diagram of a specific circuit structure of a detection device of a logging instrument bus according to an embodiment of the present utility model; as shown in fig. 3, the unidirectional conduction device adopts a diode, the indicator adopts an LED indicator lamp, and the LED indicator lamp exists in the signal transmitter 1 and the signal receiver 2 at the same time. The input end (anode of the diode) of the first unidirectional conduction device, the output end (cathode of the diode) of the second unidirectional conduction device and the signal transmission interface of the corresponding cable core in the signal transmitter 1 are mutually connected; the output end of the first unidirectional conduction device (cathode of the diode), the input end of the second unidirectional conduction device (anode of the diode) and the corresponding cable core are mutually connected. The input end of the third unidirectional conduction device (the anode of the diode) and the output end of the fourth unidirectional conduction device (the cathode of the diode) are connected with each other by the corresponding cable core; the output terminal of the third unidirectional conducting device (cathode of the diode) and the input terminal of the fourth unidirectional conducting device (anode of the diode) are connected to each other as a common terminal for the connection of the respective cable cores in the signal receiver 2.
In the test circuit used in this embodiment, taking the test No. 1 cable core (cable core 1) as an example, a test signal is connected to the No. 1 cable core LINE1 of the to-be-tested instrument bus along the signal path labeled 1 by the indicator light LED1-1 of the signal transmitter, the indicator light LED1-2 connected to the signal receiver from the lower part of the No. 1 cable core of the to-be-tested instrument bus, then the test signal passes through the diodes D2-2 to Dn-2 in the No. 2 to n circuits in the signal receiver, the other cable cores LINE2 to LINEn waiting for the test reach the diodes D2-1 to Dn-1 in the No. 2 to n circuits of the transmitter, and finally the logic transmitting circuit is returned to form a complete signal path. When the on-off state of the LINE1 cable core is normal, the LEDs 1-1 and 1-2 flash at the same time, and the brightness is normal; when the on-off state of the LINE1 cable core is abnormal, the LEDs 1-1 and 1-2 are turned off; when the on-off quality of the LINE1 cable core is poor, the brightness of the LEDs 1-1 and the brightness of the LEDs 1-2 are changed, and the on-off quality is indicated. After the test of the cable core No. 1 is completed, the logic transmitting circuit is sequentially switched to the cable core No. 2 to transmit the test signal, and the measurement principle is the same as that described above.
The embodiment of the utility model particularly provides a detection method for a logging instrument bus, which is characterized in that a signal transmitter connected to the upper end of the logging instrument bus is used for transmitting a test signal, a signal receiver connected to the lower end of the logging instrument bus is used for receiving the test signal, and the on-off, line sequence and communication quality of the tested bus are indicated according to the changes of an LED indicator lamp on the transmitter and the signal receiver. According to the detection equipment, a plurality of LED indicator lamps which are arranged according to line sequences are respectively arranged on a signal transmitter and a signal receiver, and the number of the indicator lamps is consistent with the core number of a bus; the signal transmitter transmits test square waves to each cable core of the bus one by one according to a fixed time interval, and the next cable core test is carried out after one cable core test is completed; during testing, the signal transmitter transmits square wave signals according to fixed time intervals, the LED indicator lamp corresponding to the current tested cable core on the signal transmitter flashes along with the test signals, and the frequency and the amplitude of the test signals can be set according to actual conditions so as to ensure that the signals can be normally transmitted to the signal receiver. The signal reaches a signal receiver through a tested cable core of the logging instrument bus, and the signal receiver receives a test signal sent by a signal transmitter and carries out state indication through an LED indicator lamp connected with the signal receiver. In the scheme, no extra line is connected between the signal transmitter and the signal receiver, and the arrangement of the LED indicator lamps on the signal transmitter and the signal receiver are consistent with those of a bus of the tested instrument.
And judging the on-off, line sequence and communication quality of the bus according to the state of the LED indicator lamp. When the on-off state of the tested cable core is normal, the LED indicator lamps corresponding to the cable core on the signal transmitter and the signal receiver flash at the same time; the brightness change of the indicator lamp indicates the condition of bus communication quality, when the communication quality of the tested cable core is poor, the brightness of the LED indicator lamp becomes dark, and when the tested cable core is not communicated, the LED indicator lamp is not on; the signal transmitter can send test signals one by one according to a fixed sequence, and the signal transmitter and the indicator lamp of the receiving end indicate that the bus line sequence is normal when the flashing sequence is consistent, and indicate that the bus line sequence is abnormal when the flashing sequence is inconsistent. When the line sequence of the bus does not meet the requirement, the LED on the signal receiver indicates that the line sequence of the lamp is inconsistent, so that the detection of the line sequence of the bus can be realized.
In practical application, the directions of the first unidirectional conduction device and the second unidirectional conduction device can be turned, when the signal transmitter transmits signals to the tested cable core at this time, if the tested cable core is normal and normal cable cores exist in other cable cores, the LED indicator lamp corresponding to the tested cable core is not on, the LED indicator lamps corresponding to the other cable cores are on, the third unidirectional conduction device and the fourth unidirectional conduction device are the same, and the signal transmitter can be used as an alternative scheme in practical application. In addition, a display panel can be further arranged, and each indicator light is arranged in the display panel so as to be convenient for a worker to check.
The bus detection method provided by the embodiment of the utility model has the following advantages: 1. simple and rapid: the detection of the on-off, line sequence and communication quality of the logging instrument bus is realized through the LED indicator lights on the signal transmitter and the signal receiver, no extra line connection exists between the signal transmitter and the signal receiver, the operation is simple, complex instruments and equipment are not needed, and the detection process is rapid and efficient. 2. High precision: the change of the LED indicator lamp can accurately indicate the on-off, line sequence and communication quality of the tested bus, higher detection precision is provided, and bus line sequence faults can be accurately judged. 3. Real-time feedback: the LED indicator lamp feeds back the test result in real time in the test process, so that an operator can immediately know the state of the bus, and timely measures are convenient to take for repairing. 4. The applicability is wide: the bus detection method is suitable for buses of various logging instruments, including buses with different core numbers and line sequences, and has strong applicability. Therefore, the bus detection method can realize detection of on-off, line sequence and communication quality of the logging instrument bus, and real-time feedback is carried out through the LED indicator lamp, so that the operation is simple and reliable. Meanwhile, the bus detection method is suitable for buses of various logging instruments and has wide applicability.
The signal transmitter and the signal receiver are respectively used for connecting the two ends of each cable core in the logging instrument bus and are used for communicating the cable cores, and when the signal transmitter transmits a test signal through the tested cable core, other cable cores except the tested cable core and the tested cable core form a loop. The indicator is at least one of the signal transmitter and the signal receiver; if the indicator exists in the signal transmitter, the signal transmitter comprises a first unidirectional conduction device and a second unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the first unidirectional conduction device, the second unidirectional conduction device and the indicator respectively; the first unidirectional conduction device and the indicator are mutually connected in series, and the serial structure and the second unidirectional conduction device are connected in parallel between a signal transmission interface of a corresponding cable core in the signal transmitter and the corresponding cable core; the first unidirectional conduction device and the second unidirectional conduction device are opposite in unidirectional conduction direction in the parallel structure. If the indicator exists in the signal receiver, the signal receiver comprises a third unidirectional conduction device and a fourth unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the third unidirectional conduction device, the fourth unidirectional conduction device and the indicator respectively; the third unidirectional conducting device and the indicator are mutually connected in series, and the serial structure and the fourth unidirectional conducting device are connected in parallel between the common end of each cable core connection in the signal receiver and the corresponding cable core; the third unidirectional conduction device and the fourth unidirectional conduction device are opposite in unidirectional conduction direction in the parallel structure. When in test, the signal transmitter transmits square wave signals, if the tested cable core is normal and at least one cable core in the other cable cores is normal, the signals reach the signal receiver through the tested cable core, and enter the normal other cable cores through the public end connected with each cable core to return to the signal transmitter. If the tested cable core is abnormal, the current test loop cannot be communicated, and the signal cannot be successfully returned to the signal transmitter. If only one normal cable core exists in all cable cores or no normal cable core exists, all tested loops cannot be communicated. Therefore, the state of the loop communication is displayed through the indicator, and the state of the logging instrument bus can be simply, rapidly and accurately detected.
In practical applications, the indicator may be present in both the signal transmitter and the signal receiver in order to obtain the status of each cable core more accurately. The direction of each unidirectional conduction device is not required specifically, and this embodiment provides a specific scheme, where the input end of the first unidirectional conduction device, the output end of the second unidirectional conduction device, and the signal transmission interface corresponding to the cable core in the signal transmitter are connected to each other, and the output end of the first unidirectional conduction device, the input end of the second unidirectional conduction device, and the corresponding cable core are connected to each other; the indicator and the first unidirectional conduction device are connected in series between a signal transmission interface of a corresponding cable core in the signal transmitter and the corresponding cable core. Correspondingly, the input end of the third unidirectional conduction device, the output end of the fourth unidirectional conduction device and the corresponding cable core are connected with each other, and the output end of the third unidirectional conduction device and the input end of the fourth unidirectional conduction device are connected with each other to serve as a common end for connecting each cable core in the signal receiver; the indicator and the third unidirectional conducting device are connected in series between the common end of each cable core connection in the signal receiver and the corresponding cable core. The indicator may specifically employ an LED indicator light to facilitate better review of the results by the staff. If the mode of this embodiment is adopted, when the signal transmitter sends a signal, if the measured cable core is normal and normal cable cores exist in the other cable cores, the first unidirectional conduction device and the third unidirectional conduction device corresponding to the measured cable core are electrified, and at this time, the LED indicator lamps in the signal transmitter and the signal receiver can flash normally.
In specific implementation, the specific type of the unidirectional conduction device is not required, and each unidirectional conduction device can adopt a diode; the anode of the diode is used as the input end of the unidirectional conduction device, and the cathode of the diode is used as the output end of the unidirectional conduction device.
In practical applications, the connectors at two ends of the logging instrument bus are different, so that the signal transmitter and the signal receiver need to be designed adaptively, and the embodiment provides a specific configuration example of the signal transmitter and the signal receiver. Fig. 4 is a schematic structural diagram of a signal transmitter according to an embodiment of the present utility model; as shown in fig. 4, the signal transmitter 1 includes a logic transmitting circuit 3, an LED transmitting indication panel 4, and an upper test connector 5, where the upper test connector 5 is used to connect one end of a multi-core bus to be tested. Fig. 5 is a schematic structural diagram of a signal receiver according to an embodiment of the present utility model; as shown in fig. 5, the signal receiver 2 includes a lower end test connector 6, an LED receiving indication panel 7, and a logic receiving circuit 8; the lower test connector 6 is used for connecting the other end of the multi-core bus to be tested. The LED transmission indication panel 4 and the LED reception indication panel 7 are respectively used for displaying the results of the LEDs.
The detection equipment of the logging instrument bus provided by the utility model is described in detail above. In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. A logging instrument bus detection apparatus, comprising: a signal transmitter (1), a signal receiver (2) and an indicator;
The signal transmitter (1) and the signal receiver (2) are respectively used for connecting two ends of each cable core in the logging instrument bus and are used for communicating the cable cores, and when the signal transmitter (1) transmits a test signal through the tested cable core, other cable cores except the tested cable core and the tested cable core form a loop;
the indicator is present at least in one of the signal transmitter (1) and the signal receiver (2);
If the indicator exists in the signal transmitter (1), the signal transmitter (1) comprises a first unidirectional conduction device and a second unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the first unidirectional conduction device, the second unidirectional conduction device and the indicator of the cable core; the first unidirectional conduction device and the indicator are mutually connected in series, and the series structure and the second unidirectional conduction device are connected in parallel between a signal transmission interface of a corresponding cable core in the signal transmitter (1) and the corresponding cable core; the unidirectional conduction direction of the first unidirectional conduction device and the unidirectional conduction direction of the second unidirectional conduction device in the parallel structure are opposite;
If the indicator exists in the signal receiver (2), the signal receiver (2) comprises a third unidirectional conduction device and a fourth unidirectional conduction device, and each cable core in the logging instrument bus corresponds to the third unidirectional conduction device, the fourth unidirectional conduction device and the indicator of the cable core; the third unidirectional conduction device and the indicator are mutually connected in series, and the series structure and the fourth unidirectional conduction device are connected in parallel between the common end of each cable core connection in the signal receiver (2) and the corresponding cable core; the third unidirectional conduction device and the fourth unidirectional conduction device are opposite in unidirectional conduction direction in the parallel structure.
2. The logging instrument bus detection apparatus according to claim 1, wherein the input end of the first unidirectional conducting device, the output end of the second unidirectional conducting device and the signal transmission interface of the corresponding cable core in the signal transmitter (1) are connected to each other, and the output end of the first unidirectional conducting device, the input end of the second unidirectional conducting device and the corresponding cable core are connected to each other; the indicator and the first unidirectional conduction device are connected in series between a signal transmission interface of a corresponding cable core in the signal transmitter (1) and the corresponding cable core.
3. The logging instrument bus detection apparatus according to claim 1, wherein the input end of the third unidirectional conducting device, the output end of the fourth unidirectional conducting device and the corresponding cable core are connected to each other, and the output end of the third unidirectional conducting device and the input end of the fourth unidirectional conducting device are connected to each other as a common end of each cable core connection in the signal receiver (2); the indicator and the third unidirectional conduction device are connected in series between the common end of each cable core connection in the signal receiver (2) and the corresponding cable core.
4. A logging instrument bus detection device according to any of claims 1-3, wherein the indicator is present in both the signal transmitter (1) and the signal receiver (2).
5. The logging instrument bus detection apparatus of claim 4, wherein each unidirectional conducting device is in particular a diode; the anode of the diode is used as the input end of the unidirectional conduction device, and the cathode of the diode is used as the output end of the unidirectional conduction device.
6. A logging tool bus detection device according to claim 1, wherein the signal transmitter (1) is mounted at the upper end of the logging tool and the signal receiver (2) is mounted at the lower end of the logging tool when the logging tool bus is tested in an actual logging scenario.
7. The logging instrument bus detection apparatus of claim 1, wherein the indicator is in particular an indicator light.
8. The logging instrument bus detection apparatus of claim 6, further comprising: a display panel;
each indicator light is arranged in the display panel.
9. A logging instrument bus detection apparatus according to claim 2 or 3, wherein the indicator is in particular a buzzer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202323196014.9U CN221227536U (en) | 2023-11-27 | 2023-11-27 | Detection equipment for logging instrument bus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323196014.9U CN221227536U (en) | 2023-11-27 | 2023-11-27 | Detection equipment for logging instrument bus |
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| CN221227536U true CN221227536U (en) | 2024-06-25 |
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| CN202323196014.9U Active CN221227536U (en) | 2023-11-27 | 2023-11-27 | Detection equipment for logging instrument bus |
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