Anti-lost device with SOS alarm function and SOS alarm system
By integrating a gas sensor and an SOS alarm module into the anti-loss device, the problem of timely alarm in existing technologies is solved, enabling real-time monitoring and alarm of gas or carbon monoxide concentration, forming a user mutual assistance network, and improving safety.
Patent Information
- Application Number
- CN202520237779.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing anti-loss systems cannot provide timely alarms in the event of gas explosions or carbon monoxide poisoning, especially when the user is not present, posing a safety hazard.
The anti-loss device integrates a gas sensor and an SOS alarm module. By detecting the concentration of gas or carbon monoxide, it will sound an alarm using a buzzer and LED indicator when the concentration exceeds the threshold. It will also send an SOS alarm message to surrounding devices through the anti-loss device network, forming a mutual assistance and rescue network.
It enables real-time monitoring and timely alarm of gas or carbon monoxide concentration, reduces the probability of accidents, improves environmental safety, and utilizes the existing positioning network to form a user mutual assistance and rescue system.
Smart Images

Figure CN223828121U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of anti-lost device, specifically relates to an anti-lost device with SOS alarm function, and further provides an SOS alarm system based on the anti-lost device. BACKGROUND
[0002] The anti-lost device, as its name implies, is used for preventing loss of articles. When an article cannot be found, the anti-lost device can be controlled to make a sound and be positioned through a mobile phone or a smart terminal, so that the article can be easily found. The anti-lost device can be applied to preventing loss of valuable articles such as mobile phones, wallets, keys and luggage, and can also be used for preventing children and pets from getting lost and positioning vehicles.
[0003] At present, each mainstream company has a corresponding search and positioning network. Each smart terminal in the network acts as a base station and communicates with the anti-lost device, so that a user can easily find the lost article through a server. However, the search and positioning network has a relatively single purpose at present.
[0004] Gas explosions and carbon monoxide poisoning incidents occur from time to time. The existing solution is mainly to install a gas monitoring device at a set location. When an abnormality is monitored, an alarm sound is used for alarm. In the prior art, even if a monitoring device exists, if a user is not at home or no one is on duty at the monitoring location, the incident cannot be discovered in time. Therefore, the prior art has the disadvantage of being unable to effectively remind. If the search and positioning network can be converted into an SOS alarm network by means of the search and positioning network, so that the surrounding devices can become receivers of SOS alarm information, so that everyone can form a mutual assistance group, the probability of gas explosion and carbon monoxide poisoning incidents can be greatly reduced. CONTENT OF THE UTILITY MODEL
[0005] To solve the problems in the prior art, the utility model provides an anti-lost device with an SOS alarm function, and further provides an SOS alarm system comprising the anti-lost device.
[0006] The anti-lost device with the SOS alarm function comprises a main control module, a gas sensor, a processing module, an SOS switch module, a buzzer module, an SOS alarm indication module and an antenna communication module. The gas sensor is used for detecting gas concentration in air. The input end of the processing module is connected with the output end of the gas sensor. The output end of the processing module is connected with the control end of the SOS switch module. The SOS switch module is connected with the input end of the main control module. The output end of the main control module is connected with the input end of the buzzer module and the SOS alarm indication module. The antenna communication module is used for communication between the anti-lost device and an upper computer.
[0007] Further, a display screen module is further included, an input end of the display screen module is connected with an output end of the processing module.
[0008] Further, the processing module includes a comparison circuit and an MCU processor, a first input end of the comparison circuit is connected with a reference voltage, a second input end of the comparison circuit is connected with an output end of the gas sensor, an output end of the comparison circuit is connected with an input end of the MCU processor, and a control pin of the MCU processor is connected with a control end of the SOS switch module.
[0009] Further, the gas sensor adopts a gas sensitive sensor QM-N10 capable of collecting gas and carbon monoxide concentration information, the comparison circuit includes a potentiometer VR3 and a comparator U1-A, one end of the potentiometer VR3 is connected with a power supply voltage, the other end is connected with a ground, and an adjustable end is connected with a positive phase input end of the comparator U1-A, a negative phase input end of the comparator U1-A is connected with an output end of the gas sensitive sensor QM-N10, and the negative phase input end and the output end of the comparator U1-A are further connected with two information collection pins of the MCU processor respectively.
[0010] Further, the main control module includes a loss-preventing device main control module and an SOS main control module connected with each other.
[0011] The loss-preventing device main control module is provided with a loss-preventing device main control chip and a first antenna connected with the loss-preventing device main control chip and used for communication between the loss-preventing device and an upper computer, and the SOS main control module is provided with an SOS main control chip and a second antenna connected with the SOS main control chip and used for communication with the upper computer.
[0012] The buzzer module and the SOS alarm indication module are connected with the SOS main control chip, the SOS main control chip sends SOS alarm information to the upper computer through the second antenna, and the buzzer module and the SOS alarm indication module jointly realize the SOS alarm function.
[0013] Further, the SOS alarm indication module includes an SOS alarm lamp composed of a plurality of LED lamp beads.
[0014] Further, a power supply module is further included, the power supply module includes a battery, a charging circuit and a voltage stabilizing circuit, the charging circuit is provided with a charging interface used for charging the battery, and the battery supplies power to the entire loss-preventing device through the voltage stabilizing circuit.
[0015] The utility model also provides a kind of SOS alarm system by means of anti-lost device, include the anti-lost device, mutual aid network, be equipped with several mutually connected host computers in the mutual aid network, the anti-lost device can be connected by the antenna communication module with host computer within a certain distance, the host computer can obtain the position information and SOS alarm information of anti-lost device.
[0016] Further, it further includes rescue platform, the rescue platform is connected with host computer or the server of mutual aid network, and user can send rescue information to the rescue platform by host computer.
[0017] Further, the mutual aid network includes Find My network, SmartThings Find positioning network or FindDevice network, and the host computer is a smartphone, a tablet computer or a smart terminal.
[0018] Compared with the prior art, the utility model has the beneficial effects that: by setting gas sensor on the anti-lost device, the concentration of gas to be monitored such as fuel gas can be monitored in real time according to requirements, when exceeding the threshold value, alarm can be made through buzzer module and SOS alarm indication module, and SOS emergency information can also be sent to host computer in the anti-lost device network through the anti-lost device network, and the host computer can receive alarm information in time, so that accidents can be effectively prevented, the occurrence of accidents can be reduced, and the safety of the environment can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the scheme of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.
[0020] Figure 1 It is the structure block diagram of an embodiment of the utility model;
[0021] Figure 2 It is the structure block diagram of another embodiment of the utility model;
[0022] Figure 3 It is the structure block diagram of the third embodiment of the utility model;
[0023] Figure 4 It is the circuit schematic diagram of host control module and voltage stabilizing circuit of the anti-lost device;
[0024] Figure 5 It is the circuit schematic diagram of SOS host control module;
[0025] Figure 6 It is the circuit schematic diagram of SOS alarm indication module.
[0026] Figure 7 This is a circuit schematic diagram of an embodiment of a power module;
[0027] Figure 8 This is a circuit schematic diagram of an embodiment of a gas sensor and comparison circuit.
[0028] Figure 9 This is a circuit schematic diagram of an embodiment of an MCU processor. Detailed Implementation
[0029] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish different objects, not to describe a particular order.
[0030] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.
[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0032] like Figure 1 As shown in the figure, as an embodiment of this utility model, the anti-loss device with SOS alarm function includes a main control module, a gas sensor, a processing module, an SOS switch module, a buzzer module, an SOS alarm indicator module, and an antenna communication module. The gas sensor is used to detect the gas concentration in the air. The input terminal of the processing module is connected to the output terminal of the gas sensor, and the output terminal of the processing module is connected to the control terminal of the SOS switch module. The SOS switch module is connected to the input terminal of the main control module, and the output terminal of the main control module is connected to the input terminals of the buzzer module and the SOS alarm indicator module. The antenna communication module is used for communication between the anti-loss device and a host computer.
[0033] Since the location tracking network for anti-loss devices is already very mature, only minor improvements to the circuitry are needed to enable the monitoring of harmful gases such as natural gas or CO, transforming these ubiquitous devices into safety guardians for users. Specifically, this invention incorporates a gas sensor on the anti-loss device, allowing for real-time monitoring of the concentration of gases such as natural gas. When a threshold is exceeded, an alarm is triggered via a buzzer module and an SOS alarm indicator module. Furthermore, an SOS emergency message is sent to a host computer within the anti-loss device network, ensuring timely receipt of the alarm information and effectively preventing and reducing accidents, thus improving environmental safety. This example also allows for easy identification of hazardous sources by tracking the locations of multiple anti-loss devices in the home and their displayed gas concentrations. Compared to existing monitoring equipment, this significantly enhances safety and practicality.
[0034] like Figure 2 As shown in another embodiment of this utility model, in this embodiment, the main control module includes a connected anti-loss device main control module and an SOS main control module. Without changing the original anti-loss device circuit structure, an additional SOS main control module is added to realize the SOS alarm function. Wherein,
[0035] The anti-loss device main control module is equipped with an anti-loss device main control chip and a first antenna connected to the anti-loss device main control chip for communication between the anti-loss device and the host computer. The SOS main control module is equipped with an SOS main control chip and a second antenna connected to the SOS main control chip for communication with the host computer. The buzzer module and the SOS alarm indication module are connected to the SOS main control chip. The SOS main control chip sends SOS alarm information to the host computer through the second antenna. The buzzer module and the SOS alarm indication module jointly realize the SOS alarm function.
[0036] like Figures 3-9 As shown in the third embodiment of this utility model, this example also includes a processing module for processing the results collected by the gas sensor. The SOS switch is activated only when the gas concentration exceeds a threshold, which further reduces power consumption, alleviates the processing pressure on the SOS main control chip, and lowers the overall device cost. This utility model also includes a display module, the input of which is connected to the output of the processing module.
[0037] like Figure 4 As shown, the main control module of this anti-loss device includes an anti-loss main control chip U2, a first antenna ANT1, and a displacement sensor U3, which are used to realize the basic functions of the anti-loss device. Switch K2 is used to enable the entire anti-loss device or to power off the entire anti-loss device.
[0038] like Figure 5As shown, the SOS main control module in this example uses an SOS main control chip U5, a second antenna ANT2, and a buzzer driver module. The buzzer driver module includes a transistor Q2, with two drive signals output from its base. One signal is connected to the buzzer control pin 32 of the anti-loss device main control chip U2 via resistor R18, and the other signal is connected to the buzzer control pin 3 of the SOS main control chip U5 via resistor R19. The collector of transistor Q2 is connected to the control terminal of potentiometer L2. One end of potentiometer L2 is connected to both the power supply and the positive terminal of the buzzer, while the other end is connected to the negative terminal of the buzzer. The emitter of transistor Q2 is grounded.
[0039] like Figure 6 As shown, the SOS alarm indicator module in this example includes an SOS alarm light composed of several LED beads, which is driven by a transistor Q1.
[0040] like Figure 5 and Figure 7 As shown, the power module in this example includes a battery, a charging circuit, and a voltage regulator circuit. The battery and the charging circuit are connected via interfaces J1 and J2, respectively. The charging circuit is equipped with a charging interface USB1 and a charging chip U9 for charging the battery. The battery supplies power to the entire anti-loss device through the voltage regulator circuit.
[0041] like Figure 5 As shown, the voltage regulator circuit in this example includes voltage regulator chips U13 and U4, which provide a stable voltage for the entire circuit. The voltage regulator circuit in this example also includes a battery voltage detection unit and a power supply voltage detection unit, which are used by the main control module to monitor whether the power supply is abnormal.
[0042] like Figure 8 and Figure 9 As shown, the processing module in this example includes a comparator circuit and an MCU processor. The first input terminal of the comparator circuit is connected to a reference voltage, the second input terminal is connected to the output terminal of the gas sensor, the output terminal of the comparator circuit is connected to the input terminal of the MCU processor, and the control pin of the MCU processor is connected to the control terminal of the SOS switch module.
[0043] In this example, the gas sensor used is a QM-N10 gas sensor capable of collecting information on the concentration of fuel gas and carbon monoxide. The comparison circuit includes a potentiometer VR3 and a comparator U1-A. One end of the potentiometer VR3 is connected to the power supply voltage, and the other end is grounded. The adjustable end is connected to the non-inverting input of the comparator U1-A, and the inverting input of the comparator U1-A is connected to the output of the QM-N10 gas sensor. The inverting input and output of the comparator U1-A are also connected to two information acquisition pins 5 and 6 of the MCU processor, respectively. The MCU processor is also connected to the LED2 display screen via pins 17-22. The display screen is used to display the detected gas concentration, allowing the user to intuitively view the concentration of the detected gas. In addition, pin 23 of the MCU processor in this example is connected to the base of transistor Q4 via resistor R29. The collector of transistor Q4 is connected to pin 8 of the SOS main control chip U5 via resistor R30, thereby driving and controlling the state of the SOS main control chip U5 through transistor Q4.
[0044] This utility model also provides an SOS alarm system with the aid of an anti-loss device, including the anti-loss device and a mutual assistance network. The mutual assistance network has several interconnected host computers. The anti-loss device can be connected to the host computer within a certain distance through the antenna communication module. The host computer can obtain the location information and SOS alarm information of the anti-loss device.
[0045] Preferably, the present invention also includes a rescue platform, which is connected to a host computer or a server of a mutual aid network, and users can send rescue information to the rescue platform through the host computer.
[0046] In this example, the mutual aid network can be an existing network on the market, such as Apple's or Google's Find My network, Samsung's SmartThingsFind location network, or Huawei's Find Device network. The host computer can be a smartphone, tablet, or other smart terminal. Compared with existing technologies, this invention relies on a mature search network, utilizing its large user base and mature positioning technology to expand new applications. End users can form a rescue group through the mutual aid network. When danger arises, they can send information to the rescue platform via smartphones or other smart terminals to seek help. Nearby users can also form a rescue group to achieve mutual assistance, thereby improving user safety.
[0047] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.
Claims
1. A device for preventing loss with an SOS alarm function, characterized in that: The device includes a main control module, a gas sensor, a processing module, an SOS switch module, a buzzer module, an SOS alarm indicator module, and an antenna communication module. The gas sensor detects the concentration of gas in the air. The input terminal of the processing module is connected to the output terminal of the gas sensor, and the output terminal of the processing module is connected to the control terminal of the SOS switch module. The SOS switch module is connected to the input terminal of the main control module, and the output terminal of the main control module is connected to the input terminals of the buzzer module and the SOS alarm indicator module. The antenna communication module is used for communication between the anti-loss device and the host computer.
2. The anti-loss device with SOS alarm function according to claim 1, characterized in that: It also includes a display module, the input of which is connected to the output of the processing module.
3. The anti-loss device with SOS alarm function according to claim 2, characterized in that: The processing module includes a comparator circuit and an MCU processor. The first input terminal of the comparator circuit is connected to a reference voltage, the second input terminal is connected to the output terminal of the gas sensor, the output terminal of the comparator circuit is connected to the input terminal of the MCU processor, and the control pin of the MCU processor is connected to the control terminal of the SOS switch module.
4. The anti-loss device with SOS alarm function according to claim 3, characterized in that: The gas sensor is a QM-N10 gas sensor capable of collecting information on the concentration of fuel gas and carbon monoxide. The comparison circuit includes a potentiometer VR3 and a comparator U1-A. One end of the potentiometer VR3 is connected to the power supply voltage, and the other end is grounded. The adjustable end is connected to the non-inverting input of the comparator U1-A. The inverting input of the comparator U1-A is connected to the output of the gas sensor QM-N10. The inverting input and output of the comparator U1-A are also connected to two information acquisition pins of the MCU processor.
5. The anti-loss device with SOS alarm function according to any one of claims 1-4, characterized in that: The main control module includes a connected anti-loss device main control module and an SOS main control module, wherein, The anti-loss device main control module includes an anti-loss device main control chip and a first antenna connected to the anti-loss device main control chip for communication between the anti-loss device and the host computer. The SOS main control module includes an SOS main control chip and a second antenna connected to the SOS main control chip for communication with the host computer. The buzzer module and the SOS alarm indicator module are connected to the SOS main control chip. The SOS main control chip sends SOS alarm information to the host computer through the second antenna. The buzzer module and the SOS alarm indicator module together realize the SOS alarm function.
6. The anti-loss device with SOS alarm function according to claim 5, characterized in that: The SOS alarm indicator module includes an SOS alarm light composed of several LED beads.
7. The anti-loss device with SOS alarm function according to any one of claims 1-4, characterized in that: It also includes a power module, which includes a battery, a charging circuit and a voltage regulator circuit. The charging circuit is provided with a charging interface for charging the battery, and the battery supplies power to the entire anti-loss device through the voltage regulator circuit.
8. An SOS alarm system using an anti-loss device, comprising the anti-loss device with SOS alarm function as described in any one of claims 1-7, characterized in that: The device includes a mutual aid network, which has several interconnected host computers. The anti-loss device can connect to the host computer within a certain distance through the antenna communication module. The host computer can obtain the location information and SOS alarm information of the anti-loss device.
9. The SOS alarm system according to claim 8, characterized in that: It also includes a rescue platform, which is connected to a host computer or a server of a mutual aid network, and users can send rescue information to the rescue platform through the host computer.
10. The SOS alarm system according to claim 8, characterized in that: The mutual assistance network includes the Find My network, the SmartThings Find location network, or the Find Device network, and the host computer is a smartphone, tablet, or smart terminal.