Attendance checking system based on safety shoe detection
By designing an attendance system based on labor protection shoe detection, using eddy current oscillation circuit and microcontroller to detect labor protection shoes, combined with identity identification module and software system, the problem of labor protection shoes detection in open operation scenarios is solved, and efficient Management and supervision reduce the risk of missed inspections and labor costs.
Patent Information
- Application Number
- CN202421061556.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-15
AI Technical Summary
In open-ended operation scenarios, it is difficult to effectively supervise whether workers wear labor protection shoes, and traditional visual inspections have the risk of missed inspections and waste of labor costs.
Design an attendance system based on labor protection shoe detection, including safety shoe detection pedal, eddy current coil, eddy current oscillation circuit, microcontroller, LCD display, relay, gate and personnel identity identification module. The metal part of the labor protection shoes is detected through the eddy current oscillation circuit, the microcontroller collects frequency changes, controls the relay movement, and manages whether people wear labor protection shoes, and performs identity verification and attendance records through the identity identification module and software system.
It effectively solves the problem of labor protection shoes inspection in open-ended operation scenarios, reduces the risk of missed inspection, reduces labor costs, and improves the management and supervision efficiency of workers' labor protection shoes wear.
Smart Images
Figure CN222529811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of industrial labor protection shoes detection, in particular to an attendance system based on labor protection shoes detection. Background Art
[0002] The toe and puncture-proof sole of labor protection shoes are often equipped with metal guards to protect workers' feet from injury, especially when mechanical equipment is often required to be operated on the construction site. Labor protection shoes have good protective performance and can avoid damage to workers' feet. At present, in order to ensure the safety of employees' construction and production, employees are required to wear labor protection shoes. If they are unwilling to wear or forget, they are likely to take chances and enter areas with safety risks without wearing labor protection shoes. The current management methods of labor protection wear rely on traditional education and training, slogans and signs, and visual inspections of personnel to supervise employees to wear labor protection shoes to enter the work area. As for labor protection shoes, in most actual situations, closed work scenes often use fixed and single entrances and exits, use manual security personnel for supervision and inspection, or rely on propaganda and visual supervision and inspection by manual security personnel in the production operation area; but for some open work scenes, such as road construction, open workshops, etc., it is difficult to effectively supervise and inspect whether workers wear labor protection shoes in such scenes. The current management model has the risk of missed inspections due to traditional visual inspections by personnel, which can easily cause conflicts between production personnel and auditors. Inspections by specialized personnel also result in a lot of waste of labor costs.
[0003] Therefore, it is necessary to provide an attendance system based on labor protection shoes detection to solve the above technical problems. Utility Model Content
[0004] The utility model provides an attendance system based on labor protection shoes detection, which is conducive to solving the problem of difficulty in effectively supervising and inspecting whether workers wear labor protection shoes in open working scenes and the waste of labor costs caused by visual inspection by specialized personnel.
[0005] The utility model is achieved in this way:
[0006] A work attendance system based on labor protection shoe detection comprises a safety shoe detection pedal, wherein an eddy current coil is arranged inside the safety shoe detection pedal, wherein the eddy current coil is connected to an eddy current oscillation circuit, wherein the eddy current oscillation circuit is connected to a microcontroller, wherein the microcontroller is connected to an LCD display screen, and wherein the microcontroller is connected to a gate machine and / or a personnel identity recognition module via a relay.
[0007] On the basis of the above technical solution, a pressure sensor is arranged at the bottom of the safety shoe detection pedal, the pressure sensor is connected to an analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is connected to a microcontroller.
[0008] On the basis of the above technical solution, the personnel identification module is connected to the labor protection shoe attendance management software system.
[0009] On the basis of the above technical solution, the personnel identification module includes one or more of a fingerprint identification module, an IC / ID card swiping module, and a face recognition module.
[0010] On the basis of the above technical solution, the labor protection shoe attendance management software system includes a client, a data storage server and a database, the client is connected to the data storage server, and the data storage server is connected to the database.
[0011] On the basis of the above technical solution, the microcontroller is also connected to a touch switch.
[0012] On the basis of the above technical solution, the analog-to-digital conversion circuit includes an analog-to-digital conversion chip and its peripheral circuits.
[0013] On the basis of the above technical solution, the eddy current oscillation circuit includes a six-input inverter U5, and pin 1 of the six-input inverter U5 is connected to pin 4 through resistors R12, R13 and R15; one end of the R13 is respectively connected to the cathode of the diode D3, one end of the capacitor C17 and the output end of the eddy current coil CO I L1, and the anode of the diode D3 and the other end of the capacitor C17 are grounded; the other end of the R13 is respectively connected to the cathode of the diode D5, the input end of the eddy current coil CO I L1, one end of the capacitor C19 and one end of the capacitor C20, and the anode of the diode D5, the other end of the capacitor C19 and the other end of the capacitor C20 are grounded; pin 2 and pin 3 of the six-input inverter U5 are connected, its pin 5 and pin 7 are grounded, and its pin 14 is connected to the power supply. Pin 11 of the six-input inverter U5 is connected to pin 8 through resistors R14, R16 and R18; one end of the R16 is respectively connected to the cathode of the diode D4, one end of the capacitor C18 and the output end of the eddy current coil COI L2, and the anode of the diode D4 and the other end of the capacitor C18 are grounded; the other end of the R16 is respectively connected to the cathode of the diode D6, the input end of the eddy current coil COI L2, one end of the capacitor C21 and one end of the capacitor C22, and the anode of the diode D6, the other end of the capacitor C21 and the other end of the capacitor C22 are grounded; Pin 9 of the six-input inverter U5 is connected to pin 10.
[0014] Compared with the prior art, the utility model has at least the following advantages:
[0015] The eddy current oscillation circuit of the utility model will generate a high-frequency oscillation signal and generate an alternating magnetic field around the eddy current coil. If the steel toe cap and the anti-puncture steel plate of the safety shoe are close to the eddy current coil, the alternating magnetic field will generate an eddy current field on the surface of the conductor, and the eddy current field will also generate an alternating magnetic field in the opposite direction. Due to the reaction, the amplitude and phase of the high-frequency current of the eddy current coil will be changed, causing the oscillation frequency of the oscillation signal to change. The microcontroller collects the frequency change of the above eddy current oscillation circuit. When the change frequency exceeds the set value, the relay is controlled to operate, and the gate and / or personnel identification module are controlled to work, so as to manage whether the personnel are wearing safety shoes. Use pressure sensors to prevent personnel from cheating. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0018] Figure 2 It is a structural schematic diagram of another embodiment of the utility model;
[0019] Figure 3 It is a circuit diagram of the eddy current oscillation circuit of the utility model;
[0020] Figure 4 A circuit diagram of an analog-to-digital conversion circuit of the utility model;
[0021] Figure 5 This is a circuit diagram of the LCD display screen of the utility model;
[0022] Figure 6 A circuit diagram of a microcontroller of the present utility model;
[0023] Figure 7 This is a circuit diagram of the touch switch of the utility model;
[0024] Figure 8 It is a structural schematic diagram of another embodiment of the utility model. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.
[0026] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to an element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0028] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0029] Example 1: See Figure 1 and Figure 3-Figure 7 The present embodiment discloses an attendance system based on labor protection shoe detection, the attendance system comprises a safety shoe detection pedal arranged at the entrance and exit of a workplace, eddy current coils CO I L1 and CO I L2 (optional) are arranged in the safety shoe detection pedal, the eddy current coils CO I L1 and CO I L2 (optional) are connected to an eddy current oscillation circuit, the eddy current oscillation circuit is connected to a microcontroller U3, and the microcontroller U3 is connected to a gate through a relay.
[0030] In this embodiment, the eddy current oscillation circuit includes a six-input inverter U5, and pin 1 of the six-input inverter U5 is connected to pin 4 through resistors R12, R13 and R15; one end of the R13 is respectively connected to the cathode of the diode D3, one end of the capacitor C17 and the output end of the eddy current coil CO I L1, and the anode of the diode D3 and the other end of the capacitor C17 are grounded; the other end of the R13 is respectively connected to the cathode of the diode D5, the input end of the eddy current coil CO I L1, one end of the capacitor C19 and one end of the capacitor C20, and the anode of the diode D5, the other end of the capacitor C19 and the other end of the capacitor C20 are grounded; pin 2 and pin 3 of the six-input inverter U5 are connected, its pin 5 and pin 7 are grounded, and its pin 14 is connected to the power supply. Pin 11 of the six-input inverter U5 is connected to pin 8 through resistors R14, R16 and R18; one end of the R16 is respectively connected to the cathode of the diode D4, one end of the capacitor C18 and the output end of the eddy current coil COI L2, and the anode of the diode D4 and the other end of the capacitor C18 are grounded; the other end of the R16 is respectively connected to the cathode of the diode D6, the input end of the eddy current coil COI L2, one end of the capacitor C21 and one end of the capacitor C22, and the anode of the diode D6, the other end of the capacitor C21 and the other end of the capacitor C22 are grounded. Pin 4 and pin 8 of the six-input inverter U5 are respectively connected to pin 30 and pin 29 of the microcontroller U3. Pin 9 of the six-input inverter U5 is connected to pin 10.
[0031] Eddy current coil COI L1 and eddy current coil COI L2 (optional) are arranged side by side on the safety shoe detection pedals at the entrance and exit of the workplace, corresponding to the two safety shoes of the staff, or COI L1 can be used directly to detect whether the staff are wearing safety shoes on their two feet.
[0032] The microcontroller is connected to an LCD display screen M1, and is also connected to touch switches S1, S2, and S3. The touch switches S1, S2, and S3 cooperate with the display screen M1 to set parameters such as eddy current induction sensitivity so as to adapt to different types of labor protection shoes.
[0033] When in use, the eddy current oscillation circuit U5 generates an oscillation signal and radiates outward through the eddy current coil, generating an alternating magnetic field. When the safety shoes are placed within the induction distance of the eddy current coil, the steel toe cap and anti-puncture steel plate of the safety shoes absorb the radiation signal of the eddy current coil to generate an eddy current field, which will also generate an alternating magnetic field in the opposite direction. Due to the reaction, the amplitude and phase of the high-frequency current of the eddy current coil will be changed, causing the oscillation frequency of the oscillation signal to change. The microcontroller U3 collects the frequency change of the oscillation signal of the above eddy current oscillation circuit. When the frequency of the change exceeds the set value, the relay is triggered to give a switch signal to the outside to control the operation of the gate.
[0034] Preferably, a pressure sensor is provided at the bottom of the safety shoe detection pedal, the pressure sensor is connected to an analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is connected to a microcontroller. The analog-to-digital conversion circuit includes an analog-to-digital conversion chip and its peripheral circuits, and the model of the analog-to-digital conversion chip is HX711.
[0035] When a person steps on the safety shoe detection pedal, the bridge of the pressure sensor changes slightly. This signal is connected to the analog-to-digital conversion circuit, converted into a digital signal and connected to the microcontroller U3. When the microcontroller U3 detects that the stepping pressure value exceeds the preset threshold, it starts the metal detection of the safety shoes. The pressure sensor can realize the anti-cheating function. The metal detection will only be started when the normal human weight is detected.
[0036] Embodiment 2: Since gates are not used to enclose the working area in open places, and gates are not suitable for open working places, this embodiment proposes a technical solution suitable for open places, see Figure 2 and Figure 3-Figure 7 , which is different from Example 1 in that the relay is connected to a personnel identification module. The personnel identification module is connected to a labor insurance shoe attendance management software system. The personnel identification module includes one or more of a fingerprint recognition module, an IC / ID card swiping module, and a face recognition module. The labor insurance shoe attendance management software system includes a client, a data storage server, and a database, wherein the client is connected to the data storage server, and the data storage server is connected to a database.
[0037] When a person steps on the safety shoe detection pedal, the bridge of the pressure sensor produces a slight change. This signal is connected to the analog-to-digital conversion circuit, converted into a digital signal and connected to the microcontroller U3. When the microcontroller U3 collects the stepping pressure value exceeding the preset threshold, it starts the metal detection of the safety shoes. The eddy current oscillation circuit generates an oscillation signal and radiates outward through the eddy current coil to generate an alternating magnetic field. When the safety shoes are placed within the sensing distance of the eddy current coil, the steel toe cap and the anti-puncture steel plate of the safety shoes absorb the radiation signal of the eddy current coil to generate an eddy current field. The eddy current field will also generate an alternating magnetic field in the opposite direction. Due to the reaction, the amplitude and phase of the high-frequency current of the eddy current coil will be changed, causing the oscillation frequency of the oscillation signal to change. The microcontroller U3 collects the frequency change of the oscillation signal of the above-mentioned eddy current oscillation circuit. When the change frequency exceeds the set value, the relay is triggered to act, and a switch signal is given outward to control the operation of the personnel identification module. The personnel identity recognition module identifies the identity of the staff member and sends the identity information of the staff member to the labor protection shoe attendance management software system. The microcontroller U3 sends the information whether the person is wearing labor protection shoes to the labor protection shoe attendance management software system. The labor protection shoe attendance management software system determines whether the person is required to wear labor protection shoes based on the identity information, and sends the judgment result to the microcontroller, and prompts the card swiping result through the display screen.
[0038] In another embodiment, the microcontroller U3 sends the wearing status of the labor protection shoes of the personnel to the labor protection shoes attendance management software system. The employees who are not wearing labor protection shoes can be queried through the client management software. The labor protection shoes attendance management software system automatically sends reminder messages to management cadres via email or corporate WeChat at regular intervals, and the management cadres promptly remind the personnel who are not wearing labor protection shoes.
[0039] Embodiment 3: For closed occasions, where some personnel are required to wear safety shoes and some personnel are not required to wear safety shoes, a detection module and a personnel identification module can be configured at the same time. Figure 8 The personnel identification module identifies the identity of the staff and the test results of whether the staff are wearing protective shoes, and sends them to the protective shoes attendance management software system. The protective shoes attendance management software system compares and judges based on the personnel identity information in the database and the information on whether the personnel are required to wear protective shoes, and sends the judgment result to the gate relay switch signal to open the gate to release or not open the gate to alarm.
[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An attendance system based on labor protection shoes detection, characterized in that: It comprises a safety shoe detection pedal, in which an eddy current coil is arranged, the eddy current coil is connected to an eddy current oscillation circuit, the eddy current oscillation circuit is connected to a microcontroller, the microcontroller is connected to an LCD display screen, and the microcontroller is connected to a gate machine and / or a personnel identity recognition module through a relay.
2. The attendance system based on labor protection shoe detection according to claim 1 is characterized in that: A pressure sensor is provided at the bottom of the safety shoe detection pedal, the pressure sensor is connected to an analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is connected to a microcontroller.
3. The attendance system based on labor protection shoe detection according to claim 1 is characterized in that: The personnel identification module includes one or more of a fingerprint identification module, an IC / ID card swiping module, and a face recognition module.
4. The attendance system based on labor protection shoe detection according to claim 1 is characterized in that: The microcontroller is also connected to a touch switch.
5. The attendance system based on labor protection shoe detection according to claim 2 is characterized in that: The analog-to-digital conversion circuit includes an analog-to-digital conversion chip and its peripheral circuits.
6. The attendance system based on labor protection shoe detection according to claim 1 is characterized in that: The eddy current oscillation circuit includes a six-input inverter U5, wherein the pin 1 of the six-input inverter U5 is connected to the pin 4 through resistors R12, R13 and R15; one end of the R13 is respectively connected to the cathode of the diode D3, one end of the capacitor C17 and the output end of the eddy current coil COIL1, and the anode of the diode D3 and the other end of the capacitor C17 are grounded; the other end of the R13 is respectively connected to the cathode of the diode D5, the input end of the eddy current coil COIL1, one end of the capacitor C19 and one end of the capacitor C20, and the anode of the diode D5, the other end of the capacitor C19 and the other end of the capacitor C20 are grounded; the pin 2 of the six-input inverter U5 is connected to the pin 3, and its pin 3 is connected to the pin 4; the pin 2 of the six-input inverter U5 ... Pin 5 and pin 7 are grounded, and its pin 14 is connected to the power supply; pin 11 of the six-input inverter U5 is connected to pin 8 through resistors R14, R16 and R18; one end of the R16 is respectively connected to the cathode of the diode D4, one end of the capacitor C18 and the output end of the eddy current coil COIL2, and the anode of the diode D4 and the other end of the capacitor C18 are grounded; the other end of the R16 is respectively connected to the cathode of the diode D6, the input end of the eddy current coil COIL2, one end of the capacitor C21 and one end of the capacitor C22, and the anode of the diode D6, the other end of the capacitor C21 and the other end of the capacitor C22 are grounded; pin 9 and pin 10 of the six-input inverter U5 are connected.