CN103310588B - Low emissivity children lose resisting device - Google Patents

Abstract

The invention discloses a low-radiation anti-lost device for children, which is mainly composed of a wireless remote controller and a locator. After transmitting the anti-lost function signaling, it will automatically send a contact signaling to the locator at regular intervals. The locator is always in the wireless monitoring state. When the start signal is obtained, the contact signal of the wireless remote control cannot be obtained within the set time, then the GPRS/GSM communication module and the GPS positioning module are started, and the GPRS/GSM communication module Send location information to mobile phone or server. In this way, the locator itself does not generate any electromagnetic radiation within the normal wireless communication range, thereby ensuring that children are not subject to strong radio radiation. This system is mainly used for anti-lost of children. It can also be applied to the monitoring, anti-theft, alarm, positioning and tracking of other objects. The system has the characteristics of stable signal, easy operation, superior performance, high cost performance, user-friendly, small size, and easy to carry.

Description

Low radiation anti-lost device for children

technical field

The invention relates to a low-radiation child anti-lost device composed of a wireless remote controller and a locator.

Background technique

At present, there are many reports of missing children on the Internet and on TV. Most of these cases are caused by parents' carelessness or negligence. Many abducted children not only beg on the street, but also often suffer cruel treatment. At the same time, with the continuous improvement of people's living standards, the number of items carried with them is increasing, such as (mobile phones, wallets, luggage, parcels, important documents, laptop computers, etc.), and due to busy work, it is easy to cause loss, forgetting or being stolen. Theft, thus causing a series of unnecessary losses and troubles.

A series of anti-lost devices appearing in response to the above-mentioned situation are complicated to manufacture, high in cost, and have radiation or distance limitations, such as the project with the patent No. 200620028514.9. This electronic anti-lost device is composed of a transmitter and a receiver. The transmitter on the anti-lost object sends out stable radio waves, and the main receiver does not alarm after receiving the radio signal. When the distance between them exceeds the predetermined distance and the receiver cannot receive the signal, it immediately sends out an alarm sound to remind the user Note, however, there is no fixed direction indication for finding anti-lost objects after over-distance, and it cannot accurately locate long-distance anti-lost items, and cannot continue to accurately track and locate after over-distance. The transmitter installed on the object continuously transmits wireless signals to the receiver on the main body, resulting in relatively large radiation. Another example is the L103 anti-lost device named Caring Star, which can be used for the elderly, children, and vehicle location tracking and anti-theft. It is small in size, easy to use, and saves power. There is no influence of buildings and weather, as long as there are GSM and GPRS signals It can be located in a certain place, but it can’t respond in a timely manner in a short range, the alarm sound is small, and the price is high. At the same time, to make this set of equipment effectively prevent loss, it must be activated by text message or phone call. The positioning function makes it continuously send out the current location information, and then sends the current location of the object to the user's mobile phone in the form of a short message through GSM, which will cause a lot of radiation to the human body.

Contents of the invention

In order to overcome the defects that the existing anti-lost devices have radiation, fail to adopt the combination of long and short distance anti-lost methods, as well as the problems of complex production, high cost, low cost performance and high power consumption, this patent provides a positioning module Low-radiation child anti-lost device, the child anti-lost device can effectively prevent loss, and what's more outstanding is that the positioning module is within the signal receiving range of the wireless remote control, there is no radio radiation to the outside, and it can continue to track after a long distance.

In order to achieve the above technical purpose, the technical solution of the present invention is a low-radiation anti-lost device for children, including a wireless remote controller and a locator, the wireless remote controller communicates with the locator by transmitting a wireless contact signal, and the The wireless remote control includes a remote control central processing unit, a wireless transmitting module, buttons, a remote control power management unit and a remote control power supply, the remote control central processing unit communicates with the wireless transmitting module, and the remote control power management unit is connected to the remote control power supply And supply power for the remote control central processor and the wireless transmission module, the remote control power supply is also connected to the remote control central processor through buttons to supply power for the remote control central processor, the remote control central processor is connected to the control terminal of the power management unit, the said The locator includes a wireless receiving module, a locator power management unit, a locator power supply, a locator central processing unit, a GSM/GPRS module and a GPS module, and the locator central processing unit communicates with the locator power management unit, the wireless receiving Module, GSM/GPRS module and GPS module, the power management unit of the locator is connected to the power supply of the locator and supplies power to the central processing unit of the locator, the wireless receiving module, the GSM/GPRS module and the GPS module.

In the low-radiation anti-lost device for children, both the remote control power supply and the locator power supply are batteries.

In the low-radiation anti-lost device for children, the wireless transmitting module is an ISM frequency band wireless transmitting module, and the wireless receiving module is an ISM frequency band wireless receiving module.

The working process of the low-radiation child anti-lost device includes:

1) The initial state of the remote control is the power-off state, the initial state of the tracker is that the central processing unit of the tracker, the wireless receiving module and the power management unit of the tracker are in the working state, and the GSM/GPRS module and the GPS module are in the power-off state;

2) Press the button of the remote control, the central processing unit of the remote control is directly powered by the power supply, and then the central processing unit of the remote control controls the power management unit of the remote control to supply power for the central processing unit of the remote control and the wireless transmission module. After the button is released, The power management unit of the remote control continues to supply power under the control of the central processor of the remote control, and the central processor of the remote control regularly transmits a positioning wireless contact signal to the outside with the rated transmission power through the wireless transmission module;

3) After the wireless receiving module of the locator receives the positioning wireless contact signal transmitted by the remote controller, the central processor of the locator enters the positioning mode, and the GSM/GPRS module and the GPS module remain in the power-off state;

4) When the tracker enters the positioning mode and does not receive the positioning wireless contact signal for longer than the preset interruption time, the central processor of the tracker turns on the power of the GSM/GPRS module and the GPS module through the power management unit of the tracker, and Receive GPS satellite signals through the GPS module for positioning, and then send the positioning information to the designated mobile phone number or monitoring platform in the form of SMS through the GSM/GPRS module;

5) When the locator receives the positioning wireless communication signal transmitted by the remote control again, the locator cuts off the power supply of the GSM/GPRS module and the GPS module;

6) When the key of the remote control is pressed again, the central processing unit of the remote control detects that the key is pressed, and sends a positioning end signal to the locator through the wireless transmitting module, and then cuts off the power supply by controlling the power management unit of the remote control to enter the power-off state state, the locator exits the positioning mode after receiving the positioning end signal, and no longer counts the interruption duration of the positioning wireless contact signal.

In step 4) of the low-radiation anti-lost device for children, when the GPS module still cannot receive GPS satellite signals for positioning within the preset GPS positioning time, the GSM/GPRS module performs positioning through the communication mobile network. Position, and send the positioning information to the designated mobile phone or monitoring platform in the form of SMS.

In step 4) of the low-radiation anti-lost device for children, when the GSM/GPRS module is powered on, it will call a preset phone number at a preset time interval to remind.

In the low-radiation anti-lost device for children, when the power management unit of the locator detects that the battery voltage is in an undervoltage state, the central processing unit of the locator will send a short message to a designated mobile phone number through the GSM/GPRS module to remind charging.

The technical effect of the present invention is that the short-distance monitoring is realized through the ISM frequency band wireless communication mode, and when the monitoring distance is exceeded, the positioning parameter of the positioning target is alarmed in time, and a dialing alarm is performed. While effectively preventing children from being lost, it can also achieve excellent performance within the set anti-lost range. The positioning module is in a super-long standby signal passive receiving mode, which does not generate radio radiation, and is highly efficient, energy-saving, and small in size.

The present invention will be further described below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

detailed description

Referring to Fig. 1, the present invention includes a wireless remote controller and a locator, the wireless remote controller communicates with the locator by transmitting a wireless contact signal, the wireless remote controller includes a remote controller central processing unit, a wireless transmitting module, buttons, a remote controller power management unit and The power supply of the remote control, the central processing unit of the remote control is connected with the wireless transmission module by communication, the power management unit of the remote control is connected with the power supply of the remote control and supplies power for the central processing unit of the remote control and the wireless transmission module, and the power supply of the remote control is also connected to the central processing unit of the remote control through buttons To supply power to the central processor of the remote control, the central processor of the remote control is connected to the control terminal of the power management unit, and the locator includes a wireless receiving module, a power management unit of the locator, a power supply of the locator, a central processing unit of the locator, a GSM/GPRS module and The GPS module and the central processor of the locator are respectively connected to the power management unit of the locator, the wireless receiving module, the GSM/GPRS module and the GPS module by communication, and the power management unit of the locator is connected to the power supply of the locator and provides power for the central processing unit of the locator, the wireless receiving module, GSM/GPRS module and GPS module power supply.

Both the remote control power supply and the locator power supply are batteries.

The wireless transmitting module is an ISM frequency band wireless transmitting module, and the wireless receiving module is an ISM frequency band wireless receiving module.

Its working process includes:

1) The initial state of the remote control is the power-off state, the initial state of the tracker is that the central processing unit of the tracker, the wireless receiving module and the power management unit of the tracker are in the working state, and the GSM/GPRS module and the GPS module are in the power-off state;

2) Press the button of the remote control, the central processing unit of the remote control is directly powered by the power supply, and then the central processing unit of the remote control controls the power management unit of the remote control to supply power for the central processing unit of the remote control and the wireless transmission module. After the button is released, The power management unit of the remote control continues to supply power under the control of the central processor of the remote control, and the central processor of the remote control regularly transmits a positioning wireless contact signal to the outside with the rated transmission power through the wireless transmission module;

3) After the wireless receiving module of the locator receives the positioning wireless contact signal transmitted by the remote controller, the central processor of the locator enters the positioning mode, and the GSM/GPRS module and the GPS module remain in the power-off state;

4) When the tracker enters the positioning mode and does not receive the positioning wireless contact signal for longer than the preset interruption time, the central processor of the tracker turns on the power of the GSM/GPRS module and the GPS module through the power management unit of the tracker, and Receive GPS satellite signals through the GPS module for positioning, and then send the positioning information to the designated mobile phone number or monitoring platform in the form of SMS through the GSM/GPRS module;

5) When the locator receives the positioning wireless communication signal transmitted by the remote control again, the locator cuts off the power supply of the GSM/GPRS module and the GPS module;

6) When the key of the remote control is pressed again, the central processing unit of the remote control detects that the key is pressed, and sends a positioning end signal to the locator through the wireless transmitting module, and then cuts off the power supply by controlling the power management unit of the remote control to enter the power-off state state, the locator exits the positioning mode after receiving the positioning end signal, and no longer counts the interruption duration of the positioning wireless communication signal.

In step 4), when the GPS module still cannot receive GPS satellite signals for positioning within the preset GPS positioning time, the GSM/GPRS module will perform positioning through the communication mobile network, and send the positioning information to the specified mobile phone or monitoring platform.

In step 4), when the GSM/GPRS module is powered on, it will call the preset phone number at the preset time interval for reminder.

When the power management unit of the tracker detects that the battery voltage is under voltage, the central processing unit of the tracker will send a text message to the designated mobile phone number through the GSM/GPRS module to remind the battery to charge.

The locator communicates with the wireless remote controller through a wireless transmitting module and a wireless receiving module.

The wireless transmitting module and the wireless receiving module are ISM band radio frequency transceiver modules with adjustable transmission power. In this example, the NRF24L012.4G wireless transceiver module is used as the communication module to realize data transmission and reception.

The two power management units are distributed under the control of the two central processors to realize the on-off control of the power supply to the external modules, monitor the battery power, and output a low power signal to the central processor module.

The power supply is all batteries, preferably rechargeable batteries.

The following takes the child anti-lost as an implementation case for illustration:

The positioning and anti-lost process when the child is within the radio positioning range:

The locator is placed on the child, and the wireless remote controller is placed on the adult. When an anti-lost operation is required, an adult presses the button, turns on the power to supply power to the central processor of the remote control, and the central processor of the remote control makes the power management unit of the remote control and the central processor of the remote control and the wireless transmission module after the key is released Still get continuous power. At this time, the central processor of the remote controller operates the wireless transmitting module to send the wireless communication signaling at regular intervals.

The central processor of the locator and the wireless receiving module obtain continuous power through the power management unit of the locator. The central processor of the locator controls the power supply of the power management unit of the locator to the GPS module and the GPRS/GSM module. The central processor of the locator receives After the module obtains the anti-lost function signaling, it continuously receives the wireless signaling, and cuts off the power supply of the GPS module and GPRS/GSM module through the power management unit of the tracker, so as to ensure low power consumption of the system and make the tracker body without any For radio radiation, if the wireless receiving module can continuously obtain the signaling to activate the anti-lost function, it will always be in the above-mentioned low-radiation monitoring state.

When the locator is within the set time range and the wireless receiving module does not receive the radio contact signal corresponding to the wireless remote control, the central processor of the locator controls the power management unit of the locator to turn on the power of the GPS module and the GPRS/GSM module, and the GPS module Positioning monitoring, when a valid GPS positioning signal has not been captured beyond the predetermined positioning time, the GPRS/GSM positioning function is activated to obtain the current positioning data, otherwise the GPS positioning data is directly used and uploaded to the remote user's mobile phone through GPRS/GSM And monitoring platform, to realize the real-time positioning of the child's current location, and to remind the set user to dial at intervals until receiving the command to release the anti-lost function from the wireless remote control.

When the power management unit of the tracker detects that the battery voltage is under voltage, the central processor of the tracker sends a short message to the set user through the GPRS/GSM module to remind the user to charge in time.

When the user operates the button to end the anti-lost function, the central processor of the wireless remote control controls the wireless sending module to send and receive the anti-lost detection function signaling, and automatically cuts off the power supply of the remote control power management unit to the remote control central processor itself, thereby realizing Zero standby power consumption.

Claims (1)

1. A low-radiation anti-lost device for children, characterized in that it includes a wireless remote controller and a locator, the wireless remote controller communicates with the locator by transmitting a wireless contact signal, and the wireless remote controller includes a remote controller central Processor, wireless transmission module, buttons, remote control power management unit and remote control power supply, the remote control central processing unit communicates with the wireless transmission module, the remote control power management unit is connected to the remote control power supply and is the remote control central processing unit and the wireless transmitting module to supply power, and the remote control power supply is also connected to the remote control central processing unit to supply power for the remote control central processing unit through buttons, and the remote control central processing unit is connected to the control terminal of the power management unit. The locator includes a wireless receiving module, The locator power management unit, the locator power supply, the locator central processing unit, the GSM/GPRS module and the GPS module, and the locator central processing unit communicates with the locator power management unit, the wireless receiving module, the GSM/GPRS module and the GPS module respectively. GPS module, the power management unit of the locator is connected to the power supply of the locator and supplies power to the central processing unit of the locator, the wireless receiving module, the GSM/GPRS module and the GPS module; Both the remote control power supply and the locator power supply are batteries; The wireless transmitting module is an ISM frequency band wireless transmitting module, and the described wireless receiving module is an ISM frequency band wireless receiving module; The working process of a low-radiation child anti-lost device includes: 1) The initial state of the remote control is the power-off state, the initial state of the tracker is that the central processing unit of the tracker, the wireless receiving module and the power management unit of the tracker are in the working state, and the GSM/GPRS module and the GPS module are in the power-off state; 2) Press the button of the remote control, the central processing unit of the remote control is directly powered by the power supply, and then the central processing unit of the remote control controls the power management unit of the remote control to supply power for the central processing unit of the remote control and the wireless transmission module. After the button is released, The power management unit of the remote control continues to supply power under the control of the central processor of the remote control, and the central processor of the remote control regularly transmits a positioning wireless contact signal to the outside with the rated transmission power through the wireless transmission module; 3) After the wireless receiving module of the locator receives the positioning wireless contact signal transmitted by the remote controller, the central processor of the locator enters the positioning mode, and the GSM/GPRS module and the GPS module remain in the power-off state; 4) When the tracker enters the positioning mode and does not receive the positioning wireless contact signal for longer than the preset interruption time, the central processor of the tracker turns on the power of the GSM/GPRS module and the GPS module through the power management unit of the tracker, and Receive GPS satellite signals through the GPS module for positioning, and then send the positioning information to the designated mobile phone number or monitoring platform in the form of SMS through the GSM/GPRS module; 5) When the locator receives the positioning wireless communication signal transmitted by the remote control again, the locator cuts off the power supply of the GSM/GPRS module and the GPS module; 6) When the button of the remote control is pressed again, the central processing unit of the remote control sends a positioning end signal to the locator through the wireless transmission module, and then cuts off the power supply by controlling the power management unit of the remote control to enter the power-off state, and the locator receives the positioning end signal Exit the positioning mode after receiving the signal, and no longer count the interruption duration of the positioning wireless contact signal; In step 4), when the GPS module still cannot receive GPS satellite signals for positioning within the preset GPS positioning time, the GSM/GPRS module will perform positioning through the communication mobile network, and send the positioning information to the specified mobile phone or monitoring platform; In step 4), when the GSM/GPRS module is powered on, it will call the preset phone number at the preset time interval to remind; When the power management unit of the tracker detects that the battery voltage is under voltage, the central processing unit of the tracker will send a text message to the designated mobile phone number through the GSM/GPRS module to remind the battery to charge.