CN210894635U - Static wrist strap monitoring instrument - Google Patents
Static wrist strap monitoring instrument Download PDFInfo
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- CN210894635U CN210894635U CN201921374107.7U CN201921374107U CN210894635U CN 210894635 U CN210894635 U CN 210894635U CN 201921374107 U CN201921374107 U CN 201921374107U CN 210894635 U CN210894635 U CN 210894635U
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Abstract
The utility model discloses an electrostatic wrist strap monitor, which comprises a grounding detection module, a comparison module, an alarm output module and a power module, wherein the grounding detection module is used for grounding and detecting the grounding condition and outputting the grounding condition to the comparison module to judge whether the grounding is good or not; and an alarm signal is output through an alarm output module. Through an electrostatic wrist strap control appearance, can real time monitoring electrostatic wrist strap ground connection condition, adopt electronic type control, guarantee the reliable ground connection of control object, still have alarming function, convenience safe in utilization simultaneously.
Description
Technical Field
The utility model relates to a prevent electrostatic detection technical field, especially relate to an electrostatic wrist area control appearance.
Background
Static electricity is static charge, and a human body is also a static carrying body, and in some occasions, the static electricity can have certain influence on electrical equipment and safety production.
The electrostatic wrist strap can effectively protect human body from static electricity, but the existing electrostatic wrist strap cannot determine whether the grounding is effective or good; in addition, damage in the using process cannot be known in advance, and potential safety hazards exist;
therefore, it is desirable to provide an electrostatic wrist monitor to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an electrostatic wrist strap monitor.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an electrostatic wrist strap monitor comprising:
the grounding detection module is used for grounding, detecting the grounding condition and outputting a grounding detection result;
the comparison module is connected with the grounding detection module, receives a grounding detection result output by the grounding detection module and outputs a comparison result according to the grounding detection result;
the alarm output module is connected with the comparison module, receives the comparison result output by the comparison module and outputs an alarm signal according to the comparison result;
and the power supply module is respectively connected with the grounding detection module, the comparison module and the alarm output module and provides power.
Preferably, the electrostatic wrist strap monitor further comprises:
the control module is connected with the alarm output module, receives the alarm signal output by the alarm output module and outputs a control signal according to the alarm signal;
and the wireless transmission module is connected with the control module, receives the control signal output by the control module and outputs a wireless transmission signal according to the control signal.
Preferably, the alarm output module further comprises an alarm detection circuit, which is composed of a resistor R52 and a resistor R53; one end of the resistor R52 is connected with the comparison module, the other end of the resistor R52 is connected with the control module, and meanwhile, the resistor R53 is grounded.
Preferably, the grounding detection module consists of an electrostatic wrist strap socket CN4, a first grounding point GND1, a second grounding point GND2, a resistor R4 and a capacitor C4; the electrostatic wrist strap socket CN4 is connected to the comparison module through a resistor R4, the electrostatic wrist strap socket CN4 is further connected to a first ground point GND1 and a capacitor C4, respectively, and the other end of the capacitor C4 is connected to a second ground point GND2 and ground, respectively.
Preferably, the comparing module is composed of a first comparator U2, a second comparator U3, a resistor R1, a resistor R2, a resistor R3, a resistor R6, a resistor R7, a resistor R8, a resistor R10, a diode D1, a diode D2, a diode D3 and a capacitor C5; the positive input end 3 of the first comparator U2 is connected with the grounding detection module and is further connected with the power module through a diode D1, the negative end 2 of the first comparator U2 is connected with the power module through a resistor R1, the first comparator U2 is grounded through a resistor R6, a resistor R7 and a resistor R8 which are sequentially connected, the positive feedback end of the first comparator U2 is connected with the power module, the negative feedback end is grounded, the output end is connected with the diode D2, the negative end of the second comparator U3 is connected with the positive end of the first comparator U2, the positive end of the second comparator U3 is connected with the power module through a resistor R3 and is grounded through a resistor R10, and the output end is connected with the diode D3.
Preferably, the alarm output module further comprises an alarm lamp.
Preferably, the alarm output module further comprises a buzzer.
Preferably, the wireless transmission module is a bluetooth transmission module.
Preferably, the wireless transmission module is a radio frequency transmission module.
Preferably, the power module comprises a power input socket, a power switch and a voltage stabilizing circuit which are connected in sequence.
To sum up, through an electrostatic wrist strap control appearance, can real time monitoring electrostatic wrist strap ground connection condition, adopt electronic type control, guarantee the reliable ground connection of control object, still have alarming function, convenience safe in utilization simultaneously.
Drawings
Fig. 1 is a schematic block diagram of an electrostatic wrist strap monitor according to the present invention;
fig. 2 is a schematic circuit diagram of an electrostatic wrist strap monitor provided by the present invention;
fig. 3 is a schematic circuit diagram of a control module and a bluetooth transmission module of an electrostatic wrist strap monitor provided by the present invention;
fig. 4 is a schematic circuit diagram of a radio frequency transmission module of the electrostatic wrist strap monitor provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1-4, the utility model provides an electrostatic wrist strap monitor, which is characterized in that includes: the device comprises a grounding detection module 2, a comparison module 3, an alarm output module 4 and a power supply module 1; the grounding detection module 2 is used for detecting the grounding condition and outputting a grounding detection result; the comparison module 3 is connected with the grounding detection module 2, receives the grounding detection result output by the grounding detection module 2, and outputs a comparison result according to the grounding detection result; the alarm output module 4 is connected with the comparison module 3, receives the comparison result output by the comparison module 3, and outputs an alarm signal according to the comparison result; the power module 1 is respectively connected with the grounding detection module 2, the comparison module 3 and the alarm output module 4 to provide power.
In the embodiment of the present invention, the grounding detection module 2 detects whether the grounding point of the electrostatic wrist band monitor is grounded well, which can be realized by detecting the magnitude of the grounding resistance, and outputs the detection result to the comparison module 3, and the comparison module 3 compares the detection result with the preset data, and then outputs the comparison result to the alarm output module 4. If the comparison result is normal, the grounding is good, and no alarm is given; when the comparison result is abnormal, the grounding is poor, and the alarm output module 4 outputs an alarm signal. Through static wrist strap control appearance can real time monitoring static wrist strap ground connection condition, adopt electronic type control, guarantee the reliable ground connection of control object, still have alarming function, convenience safe in utilization simultaneously.
As a preferred embodiment of the present invention, the electrostatic wrist monitor further comprises a control module 5 and a wireless transmission module 6, wherein the control module 5 is connected to the alarm output module 4, receives the alarm signal output by the alarm output module 4, and outputs a control signal according to the alarm signal; and the wireless transmission module 6 is connected with the control module 5, receives the control signal output by the control module 5, and outputs a wireless transmission signal according to the control signal.
In the embodiment of the present invention, after receiving the alarm signal output by the alarm output module 4, the control module 5 sends an instruction to enable the wireless transmission module 6 to transmit a wireless transmission signal, where the wireless transmission signal may include alarm information, and the user may additionally set a router to receive the wireless transmission signal and store the related alarm information in a server, or send the alarm information to the mobile phone APP through software. The internet can also be accessed through a special router, important information in the alarm information is stored in a server, such as an alarm device number, an alarm date, alarm time, alarm times and the like, and then the important information is inquired and tracked through a mobile phone APP.
As a preferred embodiment of the present invention, the alarm output module 4 further includes an alarm detection circuit 41, which is composed of a resistor R52 and a resistor R53; one end of the resistor R52 is connected with the comparison module 3, the other end is connected with the control module 5, and meanwhile, the resistor R53 is grounded. The resistor R52 is far larger than the resistor R53, so that the alarm signal output to the control module 5 is ensured to be within a safe voltage range, and the control module 5 is not damaged.
In the embodiment of the utility model, when alarm output module 4 has alarm signal to produce, the AlarmSensor end in the picture becomes the high level by the low level, sends high level signal to control module 5.
As a preferred embodiment of the present invention, the grounding detection module 2 is composed of an electrostatic wrist band socket CN4, a first grounding point GND1, a second grounding point GND2, a resistor R4 and a capacitor C4; the electrostatic wrist strap socket CN4 is connected to the comparison module 3 through a resistor R4, the electrostatic wrist strap socket CN4 is further connected to a first ground point GND1 and a capacitor C4, respectively, and the other end of the capacitor C4 is connected to a second ground point GND2 and ground, respectively.
In the embodiment of the invention, the two electrodes of the electrostatic wrist strap socket CN4 contact the skin of the user to discharge the static electricity on the body to the ground through the wrist strap, thus ensuring the safety of people and equipment or products; meanwhile, the grounding electrode is connected with the electrostatic wrist strap socket; when the resistance of the two electrodes on the electrostatic wrist strap socket CN4 exceeds the upper limit of the set value, it can be determined that the grounding is poor or not grounded, and an alarm signal is output through the alarm output module 4.
The first grounding point GND1 and the second grounding point GND2 can be grounded through an alligator clip or can be grounded in other modes, as long as grounding can be guaranteed, if a grounding bare copper wire is oxidized or stained to cause poor grounding, poor grounding or ungrounded can be judged, and an alarm signal is output through the alarm output module 4. In addition, two grounding points are provided to ensure more reliable grounding, and only one grounding point can be used.
As a preferred embodiment of the present invention, the comparing module 3 is composed of a first comparator U2, a second comparator U3, a resistor R1, a resistor R2, a resistor R3, a resistor R6, a resistor R7, a resistor R8, a resistor R10, a diode D1, a diode D2, a diode D3, and a capacitor C5; the positive input end 3 of the first comparator U2 is connected with the grounding detection module 2 and further connected with the power module 1 through a diode D1, the negative end 2 of the first comparator U2 is connected with the power module 1 through a resistor R1 and further connected with the ground through a resistor R6, a resistor R7 and a resistor R8 which are sequentially connected, the positive feedback end of the first comparator U2 is connected with the power module 1, the negative feedback end is grounded, the output end is connected with the diode D2, the negative end of the second comparator U3 is connected with the positive end of the first comparator U2, the positive end of the second comparator U3 is connected with the power module 1 through the resistor R3 and further connected with the ground through the resistor R10, and the output end is connected with the diode D3.
In the embodiment of the invention, the number of the comparators is two, and the comparators are connected with the electrostatic wrist strap socket and output comparison results; the first comparator U2 and the second comparator U3 output low voltage, the first comparator U2 is used for detecting the upper limit of the grounding resistance, the second comparator U3 is used for detecting the lower limit of the grounding resistance, the judgment and comparison result output of two conditions of ungrounded and grounded but poor grounding are realized through the two comparators, and when the grounding resistance value output by the grounding detection module 2 is within the upper limit and the lower limit of the set grounding resistance value, the grounding is normal; when the grounding resistance value output by the grounding detection module 2 is larger than the set upper limit value of the grounding resistance value or smaller than the set lower limit value of the grounding resistance value, the grounding failure or poor grounding is judged, and a corresponding comparison result is output to be used for the alarm output module 4 to alarm. Of course, as one of ordinary skill in the art will appreciate, it is possible to implement the basic function of the present invention for the ground fault detection by only providing one comparator.
As a preferred embodiment of the present invention, the alarm output module 4 further includes an alarm lamp 42. When the alarm output module 4 judges that the ground is not grounded or the ground is not well grounded by receiving the comparison result output by the comparison module 3, the alarm lamp 42 is turned on to prompt the user. Of course, two or more kinds of lamps may be provided, and both the grounding normality and the grounding abnormality may be displayed.
As a preferred embodiment of the present invention, the alarm output module 4 further includes a buzzer 43. When the alarm output module 4 judges that the grounding is not performed or the grounding is poor by receiving the comparison result output by the comparison module 3, the buzzer 43 sounds to prompt a user.
As a preferred embodiment of the present invention, the wireless transmission module 6 is a bluetooth transmission module 61. When control module 5 receives alarm signal after, control module 5 control signal gives bluetooth transmission module 61, bluetooth transmission module 61 will again control signal converts the bluetooth wireless transmission signal into, bluetooth wireless transmission signal can contain alarm information, and the user can send alarm information to cell-phone APP through software in addition.
As a preferred embodiment of the present invention, the wireless transmission module 6 is a radio frequency transmission module 62. When the control module 5 receives the alarm signal, the control module 5 controls the signal to the radio frequency transmission module 62, the radio frequency transmission module 62 converts the control signal into a radio frequency wireless transmission signal, the radio frequency wireless transmission signal may include alarm information, and the user may additionally set a router to receive the wireless transmission signal and store the related alarm information on the server. The internet can also be accessed through a special router, important information in the alarm information is stored in a server, such as an alarm device number, an alarm date, alarm time, alarm times and the like, and then the important information is inquired and tracked through a mobile phone APP.
As a preferred embodiment of the present invention, the power module 1 includes a power input socket 11, a power switch 12 and a voltage stabilizing circuit 13 connected in sequence. After passing through the power switch 12, the external direct-current power supply is reduced to 12V by the voltage stabilizing circuit 13, and supplies power to the grounding detection module 2, the comparison module 3 and the alarm output module 4. The external power supply is preferably a 15V direct current power supply.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (10)
1. An electrostatic wrist strap monitor, comprising:
the grounding detection module is used for grounding, detecting the grounding condition and outputting a grounding detection result;
the comparison module is connected with the grounding detection module, receives a grounding detection result output by the grounding detection module and outputs a comparison result according to the grounding detection result;
the alarm output module is connected with the comparison module, receives the comparison result output by the comparison module and outputs an alarm signal according to the comparison result;
and the power supply module is respectively connected with the grounding detection module, the comparison module and the alarm output module and provides power.
2. The electrostatic wrist strap monitor of claim 1, further comprising:
the control module is connected with the alarm output module, receives the alarm signal output by the alarm output module and outputs a control signal according to the alarm signal;
and the wireless transmission module is connected with the control module, receives the control signal output by the control module and outputs a wireless transmission signal according to the control signal.
3. The electrostatic wrist strap monitor of claim 2, wherein the alarm output module further comprises an alarm detection circuit consisting of a resistor R52 and a resistor R53; one end of the resistor R52 is connected with the comparison module, the other end of the resistor R52 is connected with the control module, and meanwhile, the resistor R53 is grounded.
4. The electrostatic wrist strap monitor according to claim 1, wherein the ground detection module is formed by an electrostatic wrist strap socket CN4, a first ground point GND1, a second ground point GND2, a resistor R4 and a capacitor C4; the electrostatic wrist strap socket CN4 is connected to the comparison module through a resistor R4, the electrostatic wrist strap socket CN4 is further connected to a first ground point GND1 and a capacitor C4, respectively, and the other end of the capacitor C4 is connected to a second ground point GND2 and ground, respectively.
5. The electrostatic wrist strap monitor according to claim 1, wherein the comparing module is composed of a first comparator U2, a second comparator U3, a resistor R1, a resistor R2, a resistor R3, a resistor R6, a resistor R7, a resistor R8, a resistor R10, a diode D1, a diode D2, a diode D3 and a capacitor C5; the positive input end 3 of the first comparator U2 is connected with the grounding detection module and is further connected with the power module through a diode D1, the negative end 2 of the first comparator U2 is connected with the power module through a resistor R1, the first comparator U2 is grounded through a resistor R6, a resistor R7 and a resistor R8 which are sequentially connected, the positive feedback end of the first comparator U2 is connected with the power module, the negative feedback end is grounded, the output end is connected with the diode D2, the negative end of the second comparator U3 is connected with the positive end of the first comparator U2, the positive end of the second comparator U3 is connected with the power module through a resistor R3 and is grounded through a resistor R10, and the output end is connected with the diode D3.
6. The electrostatic wrist strap monitor of claim 1, wherein the alarm output module further comprises an alarm light.
7. The electrostatic wrist strap monitor according to claim 1 or 6, wherein the alarm output module further comprises a buzzer.
8. The electrostatic wrist strap monitor of claim 2, wherein the wireless transmission module is a bluetooth transmission module.
9. The electrostatic wrist strap monitor of claim 8, wherein the wireless transmission module is a radio frequency transmission module.
10. The electrostatic wrist strap monitor according to claim 1, wherein the power module comprises a power input socket, a power switch and a voltage regulator circuit connected in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921374107.7U CN210894635U (en) | 2019-08-23 | 2019-08-23 | Static wrist strap monitoring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921374107.7U CN210894635U (en) | 2019-08-23 | 2019-08-23 | Static wrist strap monitoring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210894635U true CN210894635U (en) | 2020-06-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921374107.7U Active CN210894635U (en) | 2019-08-23 | 2019-08-23 | Static wrist strap monitoring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210894635U (en) |
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2019
- 2019-08-23 CN CN201921374107.7U patent/CN210894635U/en active Active
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