CN113256947B - Alarm device for preventing articles from losing - Google Patents
Alarm device for preventing articles from losing Download PDFInfo
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- CN113256947B CN113256947B CN202110692654.5A CN202110692654A CN113256947B CN 113256947 B CN113256947 B CN 113256947B CN 202110692654 A CN202110692654 A CN 202110692654A CN 113256947 B CN113256947 B CN 113256947B
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- 230000030279 gene silencing Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/16—Security signalling or alarm systems, e.g. redundant systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The application relates to an article loss prevention alarm device, which comprises an alarm, a control module, a rotating speed sensor, a first pressure sensor, a second pressure sensor and two third pressure sensors, wherein the alarm is connected with the control module; the rotating speed sensor, the second pressure sensor and the two third pressure sensors are connected in parallel; the rotating speed sensor is arranged on the wheels, the first pressure sensor is arranged on the basket, the second pressure sensor is arranged on the cushion, and the third pressure sensor is arranged on the left handle and the right handle; the control module comprises at least two alarm relays and at least two alarm line switching relays. The application can sense whether articles are put in the basket or not, judge whether the car owner leaves after the articles are put in the basket, send out an alarm signal when the car owner leaves, remind the car owner to forget the articles in the basket, and prevent property loss caused by article loss.
Description
Technical Field
The application relates to the technical field of intelligent alarm devices, in particular to an alarm device for preventing articles from losing.
Background
Along with the pursuit of people for green travel, bicycles and electric vehicles are also increasingly favored by people. Compared with vehicles such as automobiles, buses and subways, the bicycle and the electric vehicle can realize the function of riding instead of walk, can not suffer from traffic jam, and has low travel cost, so that the bicycle and the electric vehicle are the first choice of short-distance vehicles. In order to facilitate people to place articles, the conventional bicycle and electric bicycle can be provided with a bicycle basket, but sometimes people forget the articles in the bicycle basket after riding, so that unnecessary property loss is caused.
Disclosure of Invention
The application aims to provide an article loss prevention alarm device which can sense whether articles are put in a basket or not, judge whether an owner leaves after the articles are put in the basket, send an alarm signal when the owner leaves, remind the owner of forgetting the articles in the basket and prevent property loss caused by article loss.
The technical scheme adopted by the application is as follows: an article loss prevention alarm device is arranged on a bicycle or an electric vehicle and comprises a power supply, an alarm, a control module, a rotation speed sensor, a first pressure sensor, a second pressure sensor and two third pressure sensors; the alarm, the control module, the rotating speed sensor, the first pressure sensor, the second pressure sensor and the two third pressure sensors are all connected with the power supply circuit; the rotating speed sensor, the second pressure sensor and the two third pressure sensors are connected in parallel; the rotating speed sensor is arranged on the wheel, the first pressure sensor is arranged on the basket, the second pressure sensor is arranged on the cushion, and the two third pressure sensors are respectively arranged on the left handle and the right handle;
the control module comprises at least two alarm relays and at least two alarm line switching relays, the number of the alarm relays is the same as that of the alarm line switching relays, the coils of each alarm relay are connected in parallel, and the coils of each alarm relay are respectively connected in series with the rotating speed sensor, the second pressure sensor and the third pressure sensor; each alarm relay is connected with each alarm line switching relay in a one-to-one correspondence manner, a first normally closed contact of each alarm relay is connected with a coil of each alarm line switching relay in series, and a second normally closed contact of each alarm relay is connected with a normally closed end of a first contact of each alarm line switching relay in series; the normally open end of the first contact of each alarm line switching relay is connected with the normally closed ends of the first contacts of other alarm line switching relays respectively; the public end of the first contact of each alarm line switching relay is respectively connected with the first pressure sensor and the alarm in series in sequence.
Further, the control module further comprises a delay relay, a coil of the delay relay is connected with the first pressure sensor in series, and a first contact of the delay relay is connected with a second normally-closed contact of each alarm relay in series respectively.
Further, the control module further comprises a silencing button, and the silencing button is connected in series between the first pressure sensor and the alarm.
Further, the number of the alarm relays and the number of the alarm line switching relays are 2-3.
Further, the alarm is an indicator lamp, a buzzer or a buzzer with a lamp.
Further, the delay time of the delay relay is 5-20 s.
The application has the beneficial effects that:
1. judging the states of the basket and the vehicle through five sensors, wherein the first pressure sensor is used for detecting whether articles are put in the basket, the second pressure sensor is used for detecting whether a vehicle owner sits on a seat cushion, the third pressure sensor is used for detecting whether the vehicle owner holds a handle, and the rotating speed sensor is used for detecting whether the wheels rotate; the application can accurately sense whether the vehicle is in a state of riding, pushing or parking waiting, and can adapt to various use scenes;
2. judging whether an alarm is needed according to the five sensors, preventing false alarm, and improving the reliability of the alarm device, specifically:
(1) The first pressure sensor has no input, which indicates that no article is put in the basket, and the alarm does not alarm no matter whether the second pressure sensor, the third pressure sensor and the rotating speed sensor have input or not;
(2) The first pressure sensor has input, the second pressure sensor, the third pressure sensor and the rotating speed sensor have input, the driving of the vehicle owner is indicated, the vehicle owner is not far away from the vehicle, and the alarm does not alarm;
(3) The first pressure sensor has input, the second pressure sensor has no input, the third pressure sensor has input, the rotating speed sensor has input, the vehicle owner is pushing the vehicle, the vehicle owner is not far away from the vehicle, and the alarm does not alarm;
(4) The first pressure sensor has input, the second pressure sensor has input, the third pressure sensor has input, the rotation speed sensor has no input, the vehicle owner is sitting on the vehicle, the vehicle handle is held, the vehicle owner is not far away from the vehicle, and the alarm does not alarm;
(5) The first pressure sensor has input, the second pressure sensor has input, the third pressure sensor has no input, the rotating speed sensor has no input, the vehicle owner is sitting on the vehicle, but the vehicle handle is not held by the hand, the vehicle owner is not far away from the vehicle, and the alarm does not alarm;
(6) The first pressure sensor has input, the second pressure sensor has no input, the third pressure sensor has input, the rotation speed sensor has no input, the vehicle owner holds the handle, the vehicle is parked and waiting, the vehicle owner is not far away from the vehicle, and the alarm does not alarm;
(7) The first pressure sensor has input, the second pressure sensor, the third pressure sensor and the rotating speed sensor have no input, the condition that the vehicle owner is far away from the vehicle is indicated, an alarm is needed to give an alarm, and the vehicle owner is reminded of missing articles;
3. because the vehicle owner usually puts the articles into the vehicle basket before unlocking, the first pressure sensor has input, the rotating speed sensor, the second pressure sensor and the third pressure sensor have no input at the moment, and the control module is also provided with a delay starting function for avoiding the alarm from alarming during the unlocking period of the vehicle owner, namely, the delay relay is used for realizing the alarm starting function after the vehicle owner puts the articles into the vehicle basket, the alarm is prevented from ringing during the unlocking period of the vehicle owner, and the vehicle is more humanized in use;
4. the backup of the alarm circuit is realized through at least two alarm relays and the alarm circuit switching relay, when part of the alarm relays are damaged in the control module, the alarm circuit can be switched through the alarm circuit switching relay, so that the alarm device can not work normally, and the reliability of the device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a control schematic diagram of embodiment 1 of the present application.
Fig. 2 is a control schematic diagram of embodiment 2 of the present application.
Reference numerals explain: HA, alarm, YL01, first pressure sensor, YL02, second pressure sensor, YL03, third pressure sensor, ZS01, rotation speed sensor, KA01, first alarm relay, KA02, second alarm relay, KA03, third alarm relay, KB01, first alarm line switching relay, KB02, second alarm line switching relay, KB03, third alarm line switching relay, KT01, delay relay, SA01, mute button, KA01-1, first normally closed contact of the first alarm relay, KA01-2, second normally closed contact of the first alarm relay, KA02-1, first normally closed contact of the second alarm relay, KA02-2, second normally closed contact of the second alarm relay, KA03-1, first normally closed contact of the third alarm relay, KB 03-2, second normally closed contact of the third alarm relay, KB01-1, first alarm line switching relay, KT 02-1, first normally closed contact of the first alarm relay, first relay 1-1, and first alarm relay 1-1.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the present application is not limited to the specific embodiments disclosed below.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate a relative positional relationship, which changes accordingly when the absolute position of the object to be described changes.
Example 1:
an article loss prevention alarm device is arranged on a bicycle or an electric vehicle and comprises a power supply, an alarm HA, a control module, a rotating speed sensor ZS01, a first pressure sensor YL01, a second pressure sensor YL02 and two third pressure sensors YL03; the alarm HA, the control module, the rotating speed sensor ZS01, the first pressure sensor YL01, the second pressure sensor YL02 and the two third pressure sensors YL03 are all connected with the power supply circuit; the rotation speed sensor ZS01, the second pressure sensor YL02 and the two third pressure sensors YL03 are connected in parallel; the rotating speed sensor ZS01 is arranged on a wheel, the first pressure sensor YL01 is arranged on a bicycle basket, the second pressure sensor YL02 is arranged on a seat cushion, and the two third pressure sensors YL03 are respectively arranged on a left handle and a right handle;
the control module comprises at least two alarm relays and at least two alarm line switching relays, the number of the alarm relays is the same as that of the alarm line switching relays, the coils of each alarm relay are connected in parallel, and the coils of each alarm relay are respectively connected in series with the rotating speed sensor ZS01, the second pressure sensor YL02 and the third pressure sensor YL03; each alarm relay is connected with each alarm line switching relay in a one-to-one correspondence manner, a first normally closed contact of each alarm relay is connected with a coil of each alarm line switching relay in series, and a second normally closed contact of each alarm relay is connected with a normally closed end of a first contact of each alarm line switching relay in series; the normally open end of the first contact of each alarm line switching relay is connected with the normally closed ends of the first contacts of other alarm line switching relays respectively; the common end of the first contact of each alarm line switching relay is respectively connected with the first pressure sensor YL01 and the alarm HA in series in sequence.
As shown in fig. 1, in embodiment 1, the number of the alarm relays and the number of the alarm line switching relays are two, and after the coils of the first alarm relay KA01 and the second alarm relay KA02 are connected in parallel, the first alarm relay KA and the coils of the second alarm relay KA02 are connected in series with the rotation speed sensor ZS01, the second pressure sensor YL02 and the third pressure sensor YL03; the first normally closed contact KA01-1 of the first alarm relay is connected with the coil of the first alarm line switching relay KB01 in series, and the second normally closed contact KA01-2 of the first alarm relay is connected with the normally closed end of the first contact KB01-1 of the first alarm line switching relay in series; the first normally closed contact KA02-1 of the second alarm relay is connected with the coil of the second alarm line switching relay KB02 in series, and the second normally closed contact KA02-2 of the second alarm relay is connected with the normally closed end of the first contact KB02-1 of the second alarm line switching relay in series; the normally-closed end of the first contact KB01-1 of the first alarm line switching relay is connected with the normally-closed end of the first contact KB02-1 of the second alarm line switching relay; the normally-open end of the first contact KB02-1 of the second alarm line switching relay is connected with the normally-closed end of the first contact KB01-1 of the first alarm line switching relay; the public ends of the first contact KB01-1 of the first alarm line switching relay and the first contact KB02-1 of the second alarm line switching relay are respectively connected with the first pressure sensor YL01 and the alarm HA in series in sequence.
Embodiment 1 judges the state of basket, vehicle through five sensors, and first pressure sensor YL01 is arranged to detect whether there is article to put into in the basket, and second pressure sensor YL02 is arranged to detect whether the car owner sits on the cushion, and third pressure sensor YL03 is arranged to detect whether the car owner has held the handle, and rotational speed sensor ZS01 is arranged to detect whether the wheel rotates. Embodiment 1 can accurately sense whether the vehicle is in a state of riding, pushing or waiting for parking. The alarm HA is used for giving an alarm to remind a vehicle owner of forgetting articles in the vehicle basket; according to actual application requirements, the alarm HA can use an indicator lamp, a buzzer or a buzzer with a lamp, the indicator lamp can be used when lamplight alarm is needed, the buzzer can be used when sound alarm is needed, and the buzzer with the lamp can be used when sound and light alarm is needed; in embodiment 1, the alarm HA is a buzzer with a lamp. Embodiment 1 can adapt to multiple use scene, and accurate judgement needs the warning, prevents to appear false alarm, improves alarm device's reliability, and specific application scenario is as follows:
(1) First pressure sensor YL01 has no input
The first pressure sensor YL01 HAs no input, indicates that no article is put into the basket, and the contact of the first pressure sensor YL01 can not be closed, no matter whether the second pressure sensor YL02, the third pressure sensor YL03 and the rotating speed sensor ZS01 have input or not at this moment, the alarm HA can not be connected with a power supply, the alarm HA can not send an alarm signal, and a vehicle owner can normally ride.
(2) The first pressure sensor YL01 has an input, the rotation speed sensor ZS01 and the second pressure sensor YL02 have inputs, and at least one of the two third pressure sensors YL03 has an input
The first pressure sensor YL01 HAs input, which indicates that an owner HAs the object placed in the bicycle basket, the rotating speed sensor ZS01 and the second pressure sensor YL02 have input, at least one of the two third pressure sensors YL03 HAs input, which indicates that the owner sits on the seat cushion, at least one hand holds the bicycle handle, and the wheels are rotated, at the moment, the owner is riding, the owner is not far away from the bicycle, and the alarm HA does not need to alarm;
the first pressure sensor YL01 has input, then the contact of the first pressure sensor YL01 is closed, the rotating speed sensor ZS01 and the second pressure sensor YL02 have input, at least one of the two third pressure sensors YL03 has input, a sensor with input, a corresponding sensor contact is closed, a sensor without input, and a corresponding sensor contact does not act. The coils of the first alarm relay KA01 and the second alarm relay KA02 are powered, the first normally closed contact KA01-1 of the first alarm relay, the second normally closed contact KA01-2 of the first alarm relay, the first normally closed contact KA02-1 of the second alarm relay and the second normally closed contact KA02-2 of the second alarm relay are all disconnected, the coils of the first alarm line switching relay KB01 and the second alarm line switching relay KB02 are not powered, and the first contact KB01-1 of the first alarm line switching relay and the first contact KB02-1 of the second alarm line switching relay are not operated. Because the second normally closed contact KA01-2 of the first alarm relay and the second normally closed contact KA02-2 of the second alarm relay are both disconnected, the alarm HA cannot be powered on, and the alarm HA cannot send an alarm signal.
(3) The first pressure sensor YL01 has an input, the second pressure sensor YL02 has no input, at least one of the two third pressure sensors YL03 has an input, and the rotating speed sensor ZS01 has an input
The first pressure sensor YL01 has an input indicating that the vehicle owner has placed an article into the vehicle basket; the second pressure sensor YL02 HAs no input, at least one of the two third pressure sensors YL03 HAs input, the rotating speed sensor ZS01 HAs input, the vehicle owner does not sit on the seat cushion, at least one hand holds the handle, the wheels rotate, at the moment, the vehicle owner is pushing the vehicle, the vehicle owner is not far away from the vehicle, and the alarm HA does not need to alarm;
the first pressure sensor YL01 has an input, and then the contact of the first pressure sensor YL01 is closed; the second pressure sensor YL02 has no input, at least one of the two third pressure sensors YL03 has input, the rotating speed sensor ZS01 has input, the sensor with input, the corresponding sensor contact is closed, the sensor without input, and the corresponding sensor contact does not act. The coils of the first alarm relay KA01 and the second alarm relay KA02 are powered, the first normally closed contact KA01-1 of the first alarm relay, the second normally closed contact KA01-2 of the first alarm relay, the first normally closed contact KA02-1 of the second alarm relay and the second normally closed contact KA02-2 of the second alarm relay are all disconnected, the coils of the first alarm line switching relay KB01 and the second alarm line switching relay KB02 are not powered, and the first contact KB01-1 of the first alarm line switching relay and the first contact KB02-1 of the second alarm line switching relay are not operated. Because the second normally closed contact KA01-2 of the first alarm relay and the second normally closed contact KA02-2 of the second alarm relay are both disconnected, the alarm HA cannot be powered on, and the alarm HA cannot send an alarm signal.
(4) The first pressure sensor YL01 has an input, the second pressure sensor YL02 has an input, at least one of the two third pressure sensors YL03 has an input, and the rotation speed sensor ZS01 has no input
The first pressure sensor YL01 has an input indicating that the vehicle owner has placed an article into the vehicle basket; the second pressure sensor YL02 HAs input, at least one of the two third pressure sensors YL03 HAs input, the rotating speed sensor ZS01 HAs no input, the vehicle owner is sitting on the vehicle, at least one hand holds the handle, but the wheels do not rotate, at the moment, the vehicle owner is in a parking waiting state, the vehicle owner is not far away from the vehicle, and the alarm HA does not need to alarm;
the first pressure sensor YL01 has an input, and then the contact of the first pressure sensor YL01 is closed; the second pressure sensor YL02 has an input, at least one of the two third pressure sensors YL03 has an input, the rotation speed sensor ZS01 has no input, the sensor with the input is closed, the corresponding sensor contact is closed, the sensor without the input is not operated. The coils of the first alarm relay KA01 and the second alarm relay KA02 are powered, the first normally closed contact KA01-1 of the first alarm relay, the second normally closed contact KA01-2 of the first alarm relay, the first normally closed contact KA02-1 of the second alarm relay and the second normally closed contact KA02-2 of the second alarm relay are all disconnected, the coils of the first alarm line switching relay KB01 and the second alarm line switching relay KB02 are not powered, and the first contact KB01-1 of the first alarm line switching relay and the first contact KB02-1 of the second alarm line switching relay are not operated. Because the second normally closed contact KA01-2 of the first alarm relay and the second normally closed contact KA02-2 of the second alarm relay are both disconnected, the alarm HA cannot be powered on, and the alarm HA cannot send an alarm signal.
(5) The first pressure sensor YL01 has an input, the second pressure sensor YL02 has an input, both the third pressure sensors YL03 have no input, and the rotating speed sensor ZS01 has no input
The first pressure sensor YL01 has an input indicating that the vehicle owner has placed an article into the vehicle basket; the second pressure sensor YL02 HAs input, the two third pressure sensors YL03 have no input, the rotating speed sensor ZS01 HAs no input, the vehicle owner sits on the vehicle, but the two hands do not hold the handle, the wheels do not rotate, at the moment, the vehicle owner is in a parking and resting state, the vehicle owner is not far away from the vehicle, and the alarm HA does not need to alarm;
the first pressure sensor YL01 has an input, and then the contact of the first pressure sensor YL01 is closed; the second pressure sensor YL02 has input, the two third pressure sensors YL03 have no input, the rotating speed sensor ZS01 has no input, the contact of the second pressure sensor YL02 is closed, the coils of the first alarm relay KA01 and the second alarm relay KA02 are electrified, the first normally closed contact KA01-1 of the first alarm relay, the second normally closed contact KA01-2 of the first alarm relay, the first normally closed contact KA02-1 of the second alarm relay and the second normally closed contact KA02-2 of the second alarm relay are all disconnected, the coils of the first alarm line switching relay KB01 and the second alarm line switching relay KB02 are not electrified, and the first alarm line switching relay first contact KB01-1 and the second alarm line switching relay first contact KB02-1 do not act. Because the second normally closed contact KA01-2 of the first alarm relay and the second normally closed contact KA02-2 of the second alarm relay are both disconnected, the alarm HA cannot be powered on, and the alarm HA cannot send an alarm signal.
(6) The first pressure sensor YL01 has input, the second pressure sensor YL02 has no input, at least one of the two third pressure sensors YL03 has input, and the rotating speed sensor ZS01 has no input
The first pressure sensor YL01 has an input indicating that the vehicle owner has placed an article into the vehicle basket; the second pressure sensor YL02 HAs no input, at least one of the two third pressure sensors YL03 HAs input, the rotating speed sensor ZS01 HAs no input, the vehicle owner does not sit on the vehicle, at least one hand holds the handle of the vehicle, but the wheels do not rotate, at the moment, the vehicle owner is in a parking standing waiting state, the vehicle owner is not far away from the vehicle, and the alarm HA does not need to alarm;
the first pressure sensor YL01 has an input, and then the contact of the first pressure sensor YL01 is closed; the second pressure sensor YL02 has no input, at least one of the two third pressure sensors YL03 has input, the rotating speed sensor ZS01 has no input, the sensor with input, the corresponding sensor contact is closed, the sensor without input, and the corresponding sensor contact does not act. The coils of the first alarm relay KA01 and the second alarm relay KA02 are powered, the first normally closed contact KA01-1 of the first alarm relay, the second normally closed contact KA01-2 of the first alarm relay, the first normally closed contact KA02-1 of the second alarm relay and the second normally closed contact KA02-2 of the second alarm relay are all disconnected, the coils of the first alarm line switching relay KB01 and the second alarm line switching relay KB02 are not powered, and the first contact KB01-1 of the first alarm line switching relay and the first contact KB02-1 of the second alarm line switching relay are not operated. Because the second normally closed contact KA01-2 of the first alarm relay and the second normally closed contact KA02-2 of the second alarm relay are both disconnected, the alarm HA cannot be powered on, and the alarm HA cannot send an alarm signal.
(7) The first pressure sensor YL01 has an input, and the second pressure sensor YL02, the two third pressure sensors YL03 and the rotating speed sensor ZS01 have no input
The first pressure sensor YL01 has an input indicating that the vehicle owner has placed an article into the vehicle basket; the second pressure sensor YL02, the two third pressure sensors YL03 and the rotating speed sensor ZS01 are all input-free, so that a vehicle owner does not sit on a seat cushion, both hands do not hold a handle of the vehicle, the wheels do not rotate, at the moment, the vehicle owner is far away from the vehicle, an alarm HA is needed for alarming, and the vehicle owner is reminded of missing articles;
the first pressure sensor YL01 has an input, and then the contact of the first pressure sensor YL01 is closed; the second pressure sensor YL02, the two third pressure sensors YL03 and the rotating speed sensor ZS01 are all input-free, and the corresponding sensor contacts are all not operated. The coils of the first alarm relay KA01 and the second alarm relay KA02 are not electrified, the first normally closed contact KA01-1 of the first alarm relay, the second normally closed contact KA01-2 of the first alarm relay, the first normally closed contact KA02-1 of the second alarm relay and the second normally closed contact KA02-2 of the second alarm relay are kept in a closed state, the coils of the first alarm line switching relay KB01 and the second alarm line switching relay KB02 are electrified, the first contact KB01-1 of the first alarm line switching relay and the first contact KB02-1 of the second alarm line switching relay act, and the alarm HA is powered on and sends an alarm signal.
Through five sensors, detect the car owner and keep away from the vehicle, set up third pressure sensor YL03 respectively on controlling the hand, can adapt to the habit of partly crowd single hand control car, effectively improve alarm device's reliability. Embodiment 1 can avoid the alarm HA from false alarm under the conditions that the car owner waits for traffic lights, the car is in chatter with friends, and the like, and reduces the experience of users.
In order to avoid failure of an alarm relay in a control module and incapability of normal use of the alarm device, the embodiment of the application realizes backup of an alarm circuit by arranging at least two alarm relays and at least two alarm circuit switching relays. Preferably, the number of the alarm relays and the alarm line switching relays is 2-3, so that the function of backup of the alarm lines can be realized, and the redundancy of devices and lines can not be caused. The alarm relay and the alarm line switching relay are excessively arranged, so that the utilization rate of devices can be reduced, the cost is increased, and unnecessary waste is caused.
Embodiment 1 realizes the backup of the alarm line by providing two alarm relays and two alarm line switching relays. When the use state that does not need to be alarmed occurs, if the first alarm relay KA01 breaks down, the first normally closed contact KA01-1 of the first alarm relay and the second normally closed contact KA01-2 of the first alarm relay can not be disconnected, the coil of the first alarm line switching relay KB01 is powered on, the first alarm line switching relay first contact KB01-1 acts, the connection between the alarm HA and the first alarm relay KA01 is disconnected, and false alarm of the alarm HA is avoided. Meanwhile, the coil of the second alarm relay KA02 is electrified, the first normally closed contact KA02-1 of the second alarm relay and the second normally closed contact KA02-2 of the second alarm relay are disconnected, the coil of the second alarm line switching relay KB02 is not electrified, the first contact KB02-1 of the second alarm line switching relay does not act, the alarm HA cannot be powered on due to the fact that the second normally closed contact KA02-2 of the second alarm relay is disconnected, the alarm HA cannot send an alarm signal, and the influence of faults of the first alarm relay KA01 on the embodiment 1 is effectively eliminated. If the second alarm relay KA02 fails, the working principle of embodiment 1 is the same as that of the first alarm relay KA01 when it fails, and no detailed description is given here. Only when first alarm relay KA01 and second alarm relay KA02 all break down, embodiment 1 just can not normally work, through setting up a plurality of alarm relays and alarm line switching relay, has effectively improved embodiment 1's reliability.
Example 2:
as shown in fig. 2, embodiment 2 uses three alarm relays and three alarm line switching relays, which are a first alarm relay KA01, a second alarm relay KA02, a third alarm relay KA03, a first alarm line switching relay KB01, a second alarm line switching relay KB02, and a third alarm line switching relay KB03, respectively. The alarm HA in embodiment 2 is a buzzer with a lamp as well.
The coils of the first alarm relay KA01, the second alarm relay KA02 and the third alarm relay KA03 are connected in parallel and then connected in series with the rotating speed sensor ZS01, the second pressure sensor YL02 and the third pressure sensor YL03; the first normally closed contact KA01-1 of the first alarm relay is connected with the coil of the first alarm line switching relay KB01 in series, and the second normally closed contact KA01-2 of the first alarm relay is connected with the normally closed end of the first contact KB01-1 of the first alarm line switching relay in series; the first normally closed contact KA02-1 of the second alarm relay is connected with the coil of the second alarm line switching relay KB02 in series, and the second normally closed contact KA02-2 of the second alarm relay is connected with the normally closed end of the first contact KB02-1 of the second alarm line switching relay in series; the first normally closed contact KA03-1 of the third alarm relay is connected with the coil of the third alarm line switching relay KB03 in series, and the second normally closed contact KA03-2 of the third alarm relay is connected with the normally closed end of the first contact KB03-1 of the third alarm line switching relay in series; the normally open end of the first alarm line switching relay first contact KB01-1 is respectively connected with the normally closed end of the second alarm line switching relay first contact KB02-1 and the normally closed end of the third alarm line switching relay first contact KB 03-1; the normally open end of the first contact KB02-1 of the second alarm line switching relay is connected with the normally closed end of the first contact KB01-1 of the first alarm line switching relay and the normally closed end of the first contact KB03-1 of the third alarm line switching relay respectively; the normally open end of the first contact KB03-1 of the third alarm line switching relay is connected with the normally closed end of the first contact KB01-1 of the first alarm line switching relay and the normally closed end of the first contact KB02-1 of the second alarm line switching relay respectively; the public ends of the first alarm line switching relay first contact KB01-1, the second alarm line switching relay first contact KB02-1 and the third alarm line switching relay first contact KB03-1 are respectively connected with the first pressure sensor YL01 and the alarm HA in series in sequence.
The working principle of the alarm in embodiment 2 and the working principle of the backup of the alarm circuit are the same as those in embodiment 1, and will not be described here again. When one or two of the three alarm relays fail, the embodiment 2 can still work normally, and only if all the three alarm relays fail, the embodiment 2 cannot work normally.
The control module of the embodiment 2 further comprises a delay relay KT01 and a silencing button SA01, wherein a coil of the delay relay KT01 is connected with a first pressure sensor YL01 in series, and a first contact KT01-1 of the delay relay is connected with a second normally-closed contact KA01-2 of the first alarm relay, a second normally-closed contact KA02-2 of the second alarm relay and a second normally-closed contact KA03-2 of the third alarm relay in series respectively; the silencing button SA01 is connected in series between the first pressure sensor YL01 and the alarm HA.
During actual use, the vehicle owner usually puts articles into the vehicle basket before unlocking, at this time, the first pressure sensor YL01 has input, and the rotation speed sensor ZS01, the second pressure sensor YL02 and the two third pressure sensors YL03 have no input. In order to avoid the alarm HA alarming during unlocking of the car owner, the control module is provided with a delay starting function, namely, delay is carried out through a delay relay KT01. When the first pressure sensor YL01 is input, a coil of the delay relay KT01 is powered on, a first contact KT01-1 of the delay relay cannot be closed immediately, and in the delay time, even if no input exists in the rotating speed sensor ZS01, the second pressure sensor YL02 and the two third pressure sensors YL03, the alarm HA cannot be powered on and cannot give an alarm because the first contact KT01-1 of the delay relay is in an off state; after the delay is finished, the first contact KT01-1 of the delay relay is closed, and in the embodiment 2, whether an alarm is required is judged according to the states of the five sensors. According to the habit of each person, the delay time of the delay relay KT01 is set to 5-20 s, and a sufficient unlocking time is reserved for the vehicle owner, and in the embodiment 2, the delay time of the delay relay KT01 is set to 10s.
After the car owner receives the alarm signal, the alarm signal can be closed through the silencing button SA01, the silencing button SA01 is pressed down, the contact of the silencing button SA01 is disconnected, the alarm HA is disconnected with the power supply, and the alarm is stopped.
According to the embodiment of the application, whether the vehicle owner is far away from the vehicle or not is detected through the five sensors, so that the vehicle owner can adapt to different use situations and different crowd's vehicle control habits, whether an alarm is needed or not is accurately judged, false alarm is prevented, and the reliability of the embodiment of the application is effectively improved; the alarm HA can prevent false alarm when a car owner waits for traffic lights, a car is in chatter with friends and the like, and the experience of a user is reduced. Through time delay relay KT01, realize that the car owner puts into the basket with article after, time delay 5~20s start alarm's function prevents that alarm HA from ringing in car owner's unblanking period, uses more humanized. A plurality of alarm lines can be constructed through a plurality of alarm relays, the alarm relays and the alarm line switching relays are arranged in a one-to-one correspondence manner, and the mutual switching among the alarm lines can be realized through the alarm line switching relays; when part of the alarm relays are in fault, the fault alarm relays can be cut off through the corresponding alarm line switching relays, and the normal operation of the embodiment of the application is maintained through the alarm lines where the residual alarm relays capable of operating normally are located. Only when all alarm relays are in fault, the embodiment of the application cannot be normally used, and the reliability of the embodiment of the application is effectively improved.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (5)
1. An article loss prevention alarm device is arranged on a bicycle or an electric vehicle and is characterized by comprising a power supply, an alarm, a control module, a rotating speed sensor, a first pressure sensor, a second pressure sensor and two third pressure sensors; the alarm, the control module, the rotating speed sensor, the first pressure sensor, the second pressure sensor and the two third pressure sensors are all connected with the power supply circuit; the rotating speed sensor, the second pressure sensor and the two third pressure sensors are connected in parallel; the rotating speed sensor is arranged on the wheel, the first pressure sensor is arranged on the basket, the second pressure sensor is arranged on the cushion, and the two third pressure sensors are respectively arranged on the left handle and the right handle;
the control module comprises at least two alarm relays and at least two alarm line switching relays, the number of the alarm relays is the same as that of the alarm line switching relays, the coils of each alarm relay are connected in parallel, and the coils of each alarm relay are respectively connected in series with the rotating speed sensor, the second pressure sensor and the third pressure sensor; each alarm relay is connected with each alarm line switching relay in a one-to-one correspondence manner, a first normally closed contact of each alarm relay is connected with a coil of each alarm line switching relay in series, and a second normally closed contact of each alarm relay is connected with a normally closed end of a first contact of each alarm line switching relay in series; the normally open end of the first contact of each alarm line switching relay is connected with the normally closed ends of the first contacts of other alarm line switching relays respectively; the public end of the first contact of each alarm line switching relay is respectively connected with the first pressure sensor and the alarm in series in sequence; the control module further comprises a silencing button which is connected in series between the first pressure sensor and the alarm.
2. The article loss prevention alarm device of claim 1, wherein the control module further comprises a delay relay, the coil of the delay relay is connected in series with the first pressure sensor, and the first contact of the delay relay is connected in series with the second normally closed contact of each alarm relay, respectively.
3. The article loss prevention alarm device according to claim 1, wherein the number of the alarm relays and the number of the alarm line switching relays are 2-3.
4. The article loss prevention warning device according to claim 1, wherein the warning device is an indicator light, a buzzer or a buzzer with a light.
5. The article loss prevention alarm device according to claim 2, wherein the delay time of the delay relay is 5-20 s.
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| CN202110692654.5A CN113256947B (en) | 2021-06-22 | 2021-06-22 | Alarm device for preventing articles from losing |
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| CN113256947A (en) | 2021-08-13 |
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