CN113256947A - Alarm device for preventing articles from being lost - Google Patents
Alarm device for preventing articles from being lost Download PDFInfo
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- CN113256947A CN113256947A CN202110692654.5A CN202110692654A CN113256947A CN 113256947 A CN113256947 A CN 113256947A CN 202110692654 A CN202110692654 A CN 202110692654A CN 113256947 A CN113256947 A CN 113256947A
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- 230000003405 preventing effect Effects 0.000 title abstract description 4
- 230000002265 prevention Effects 0.000 claims abstract description 10
- 230000030279 gene silencing Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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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
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- 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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- 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; the rotating speed sensor, the second pressure sensor and the two third pressure sensors are connected in parallel; the rotating speed sensors are arranged on wheels, the first pressure sensor is arranged on a bicycle basket, the second pressure sensor is arranged on a cushion, and the third pressure sensor is 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 invention can sense whether articles are put in the bicycle basket or not, judge whether the owner leaves after the articles are put in the bicycle basket or not, and send out an alarm signal when the owner leaves to remind the owner that the articles are left in the bicycle basket, thereby preventing 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 being lost.
Background
Along with the pursuit of people on green travel, bicycles and electric vehicles are more and more popular with people. Compared with vehicles such as automobiles, buses and subways, the bicycle and the electric vehicle can realize the function of riding instead of walking, can not encounter traffic jam, are low in travel cost and are the first choice of short-distance vehicles. The existing bicycle and electric vehicle can be provided with a bicycle basket for people to place articles conveniently, but sometimes people can forget the articles in the bicycle basket after riding, and unnecessary property loss is caused.
Disclosure of Invention
The invention aims to provide an article loss prevention alarm device which can sense whether articles are put into a basket or not, judge whether a vehicle owner leaves after the articles are put into the basket or not, and send out an alarm signal when the vehicle owner leaves to remind the vehicle owner that the articles are left in the basket, so that property loss caused by article loss is prevented.
The technical scheme adopted by the invention 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 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 circuit; the rotating speed sensor, the second pressure sensor and the two third pressure sensors are connected in parallel; the rotating speed sensors are arranged on wheels, the first pressure sensor is arranged on a bicycle basket, the second pressure sensor is arranged on a cushion, and the two third pressure sensors 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, coils of each alarm relay are connected in parallel, and the coils of each alarm relay are respectively connected with the rotating speed sensor, the second pressure sensor and the third pressure sensor in series; each alarm relay is connected with each alarm circuit 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 circuit 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 circuit switching relay in series; the normally open end of the first contact of each alarm line switching relay is respectively connected with the normally closed ends of the first contacts of other alarm line switching relays; and 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.
Furthermore, the control module further comprises a time delay relay, a coil of the time delay relay is connected with the first pressure sensor in series, and a first contact of the time delay relay is connected with a second normally closed contact of each alarm relay in series.
Further, the control module further comprises a silencing button, and the silencing button is connected between the first pressure sensor and the alarm in series.
Furthermore, the number of the alarm relays and the number of the alarm line switching relays are 2-3.
Further, the alarm is an indicator light, a buzzer or a buzzer with a light.
Furthermore, the delay time of the delay relay is 5-20 s.
The invention has the beneficial effects that:
1. the states of a basket and a vehicle are judged through five sensors, a first pressure sensor is used for detecting whether articles are placed in the basket or not, a second pressure sensor is used for detecting whether a vehicle owner sits on a cushion or not, a third pressure sensor is used for detecting whether the vehicle owner holds a handle or not, and a rotating speed sensor is used for detecting whether wheels rotate or not; the invention can accurately sense whether the vehicle is in a state of riding, pushing or parking waiting, and can adapt to various use scenes;
2. according to five sensors, judge whether need report to the police, prevent that the wrong report is alert, improve alarm device's reliability, specifically do:
(1) the first pressure sensor has no input, which indicates that no article is put in the bicycle basket, and the alarm does not give an 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, and the second pressure sensor, the third pressure sensor and the rotating speed sensor all have input, which indicates that the vehicle owner is riding the vehicle, the vehicle owner is not far away from the vehicle, and the alarm does not give an 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, which indicates that the vehicle owner is pushing the vehicle, the vehicle owner is not far away from the vehicle, and the alarm does not give an alarm;
(4) the first pressure sensor has input, the second pressure sensor has input, the third pressure sensor has input, the rotational speed sensor has no input, which indicates that the owner sits on the vehicle and holds the handle of the vehicle, the owner does not get away from the vehicle, and the alarm does not give an 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 sits on the vehicle, but does not hold the vehicle handle by hands, the vehicle owner is not far away from the vehicle, and the alarm does not give an alarm;
(6) the first pressure sensor has input, the second pressure sensor has no input, the third pressure sensor has input, and the rotating speed sensor has no input, which indicates that a vehicle owner holds the vehicle handle, stops for waiting, the vehicle owner is not far away from the vehicle, and the alarm does not give an alarm;
(7) the first pressure sensor has input, and the second pressure sensor, the third pressure sensor and the rotating speed sensor have no input, which indicates that the owner is far away from the vehicle, and an alarm is needed to give an alarm to remind the owner of missing articles;
3. because the owner usually puts articles into the basket and then unlocks the lock, the first pressure sensor has input at the moment, and the rotating speed sensor, the second pressure sensor and the third pressure sensor have no input, in order to avoid the alarm from giving an alarm during the unlocking of the owner, the control module is also provided with a delay starting function, namely, the delay relay is used for delaying 5-20 s to start the alarm function after the owner puts articles into the basket, the alarm is prevented from sounding during the unlocking of the owner, and the use is more humanized;
4. the backup of the alarm circuit is realized through at least two alarm relays and the alarm circuit switching relay, when a part of the alarm relays in the control module are damaged, the alarm circuit can be switched through the alarm circuit switching relay, the alarm device is prevented from working abnormally, and the reliability of the device is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used 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 it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a control schematic diagram of embodiment 1 of the present invention.
Fig. 2 is a control schematic diagram of embodiment 2 of the present invention.
The reference signs explain: HA, an alarm, YL01, a first pressure sensor, YL02, a second pressure sensor, YL03, a third pressure sensor, ZS01, a rotating speed sensor, KA01, a first alarm relay, KA02, a second alarm relay, KA03, a third alarm relay, KB01, a first alarm line switching relay, KB02, a second alarm line switching relay, KB03, a third alarm line switching relay, KT01, a time delay relay, SA01, a noise reduction button, KA01-1, a first normally closed contact of the first alarm relay, KA01-2, a second normally closed contact of the first alarm relay, KA02-1, a first normally closed contact of the second alarm relay, KA02-2, a second normally closed contact of the second alarm relay, 03-1, a first normally closed contact of the third alarm relay, 03-2, a second normally closed contact of the third alarm relay, KB01-1, first alarm line switching relay first contact, KB02-1, second alarm line switching relay first contact, KB03-1, third alarm line switching relay first contact, KT01-1, delay relay first contact.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and claims of this patent application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of 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 "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
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 YL 03; 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 circuit; the rotating speed sensor ZS01, the second pressure sensor YL02 and the two third pressure sensors YL03 are connected in parallel; the rotation 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 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, coils of each alarm relay are connected in parallel, and the coils of each alarm relay are respectively connected with the rotating speed sensor ZS01, the second pressure sensor YL02 and the third pressure sensor YL03 in series; each alarm relay is connected with each alarm circuit 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 circuit 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 circuit switching relay in series; the normally open end of the first contact of each alarm line switching relay is respectively connected with the normally closed ends of the first contacts of other alarm line switching relays; 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.
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 KA01 and 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 YL 03; the first normally closed contact KA01-1 of the first alarm relay is connected with a coil of a 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 alarm line switching relay KB01-1 in series; the first normally closed contact KA02-1 of the second alarm relay is connected with a coil of a 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 a first contact KB02-1 of the second alarm line switching relay in series; the normally open end of the first alarm line switching relay first contact KB01-1 is connected with the normally closed end of the second alarm line switching relay first contact KB 02-1; 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; the common end of the first alarm line switching relay first contact KB01-1 and the common end of the second alarm line switching relay first contact KB02-1 are respectively connected with the first pressure sensor YL01 and the alarm HA in series.
Embodiment 1 judges the state of bicycle basket, vehicle through five sensors, and first pressure sensor YL01 is used for detecting whether have article to put into in the bicycle basket, and second pressure sensor YL02 is used for detecting whether the car owner sits on the cushion, and third pressure sensor YL03 is used for detecting whether the car owner has held the handle, and rotational speed sensor ZS01 is used for detecting whether the wheel rotates. Embodiment 1 can accurately sense whether the vehicle is in a state of riding, pushing, or parking waiting. The alarm HA is used for giving an alarm to remind the owner of a forgotten article in the basket; according to the 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 light alarm is needed, the buzzer can be used when sound alarm is needed, and the buzzer with a lamp can be used when sound and light alarm is needed; in embodiment 1, the alarm HA is a buzzer with a light. Embodiment 1 can adapt to multiple use scenario, and whether accurate judgement needs to report to the police, prevents the wrong report to the police, improves alarm device's reliability, and specific application scenario is as follows:
(1) first pressure sensor YL01 has no input
First pressure sensor YL01 does not have the input, shows that no article are put into the bicycle basket, and first pressure sensor YL 01's contact can not be closed, no matter whether second pressure sensor YL02, third pressure sensor YL03 and speed sensor ZS01 have the input this moment, alarm HA can not the switch on power supply, and alarm HA can not send alarm signal, and the car owner can normally ride.
(2) A first pressure sensor YL01, a rotation speed sensor ZS01, a second pressure sensor YL02, and at least one of the two third pressure sensors YL03
The first pressure sensor YL01 HAs input indicating that the owner HAs put articles into the 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 indicating that the owner sits on the seat cushion, holds the handlebar with at least one hand and rotates the wheel, at the moment, the owner is riding the bicycle, the owner is not far away from the vehicle, and the alarm HA does not need to give an alarm;
when the first pressure sensor YL01 has an input, the contact of the first pressure sensor YL01 is closed, the rotation speed sensor ZS01 and the second pressure sensor YL02 have inputs, at least one of the two third pressure sensors YL03 has an input, the sensor with the input is closed, the sensor contact corresponding to the sensor with the input is closed, the sensor without the input is not operated, and the sensor contact corresponding to the sensor contact is not operated. 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 circuit switching relay KB01 and the second alarm circuit switching relay KB02 are not electrified, and the first contact KB01-1 of the first alarm circuit switching relay and the first contact KB02-1 of the second alarm circuit switching relay are not actuated. 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 connected with a power supply, and the alarm HA cannot send out an alarm signal.
(3) With an input from a first pressure sensor YL01, no input from a second pressure sensor YL02, an input from at least one of two third pressure sensors YL03, and an input from a rotational speed sensor ZS01
A first pressure sensor YL01 has an input indicating that the vehicle owner has placed an item into the basket; 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, which indicates that the vehicle owner does not sit on the seat cushion, at least one hand holds the vehicle handle, and 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 give an alarm;
the first pressure sensor YL01 has an input, 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 an input, the rotation speed sensor ZS01 has an input, the sensor with the input has a corresponding sensor contact closed, the sensor without the input has no sensor contact, and the corresponding sensor contact does not act. 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 circuit switching relay KB01 and the second alarm circuit switching relay KB02 are not electrified, and the first contact KB01-1 of the first alarm circuit switching relay and the first contact KB02-1 of the second alarm circuit switching relay are not actuated. 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 connected with a power supply, and the alarm HA cannot send out an alarm signal.
(4) With an input from a first pressure sensor YL01, an input from a second pressure sensor YL02, an input from at least one of the two third pressure sensors YL03, and a non-input from a rotational speed sensor ZS01
A first pressure sensor YL01 has an input indicating that the vehicle owner has placed an item into the basket; the input of the second pressure sensor YL02 is provided, the input of at least one of the two third pressure sensors YL03 is provided, the rotation speed sensor ZS01 HAs no input, which indicates that the vehicle owner is sitting on the vehicle, at least one hand holds the vehicle 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 give an alarm;
the first pressure sensor YL01 has an input, 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 has an input, the corresponding sensor contact is closed, the sensor has no input, and the corresponding sensor contact does not act. 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 circuit switching relay KB01 and the second alarm circuit switching relay KB02 are not electrified, and the first contact KB01-1 of the first alarm circuit switching relay and the first contact KB02-1 of the second alarm circuit switching relay are not actuated. 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 connected with a power supply, and the alarm HA cannot send out an alarm signal.
(5) With input from a first pressure sensor YL01, input from a second pressure sensor YL02, no input from both third pressure sensors YL03 and no input from a rotational speed sensor ZS01
A first pressure sensor YL01 has an input indicating that the vehicle owner has placed an item into the basket; the second pressure sensor YL02 HAs input, the two third pressure sensors YL03 have no input, and the rotating speed sensor ZS01 HAs no input, which indicates that the vehicle owner sits on the vehicle, but does not hold the vehicle handle with two hands, and the wheels do not rotate, at this time, the vehicle owner is in a state of parking and rest, the vehicle owner is not far away from the vehicle, and the alarm HA does not need to give an alarm;
the first pressure sensor YL01 has an input, the contact of the first pressure sensor YL01 is closed; the second pressure sensor YL02 has an 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 KB01-1 and the second alarm line switching relay KB02-1 are not actuated. 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 connected with a power supply, and the alarm HA cannot send out an alarm signal.
(6) With input from a first pressure sensor YL01, no input from a second pressure sensor YL02, input from at least one of the two third pressure sensors YL03, and no input from a rotational speed sensor ZS01
A first pressure sensor YL01 has an input indicating that the vehicle owner has placed an item into the basket; 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 no input, which indicates that the vehicle owner does not sit on the vehicle, at least one hand holds the vehicle handle, 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 give an alarm;
the first pressure sensor YL01 has an input, 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 an input, the rotation speed sensor ZS01 has no input, the sensor has an input, the corresponding sensor contact is closed, the sensor has no input, and the corresponding sensor contact does not act. 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 circuit switching relay KB01 and the second alarm circuit switching relay KB02 are not electrified, and the first contact KB01-1 of the first alarm circuit switching relay and the first contact KB02-1 of the second alarm circuit switching relay are not actuated. 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 connected with a power supply, and the alarm HA cannot send out 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 rotational speed sensor ZS01 have no inputs
A first pressure sensor YL01 has an input indicating that the vehicle owner has placed an item into the basket; the second pressure sensor YL02, the two third pressure sensors YL03 and the rotating speed sensor ZS01 are not input, the fact that a vehicle owner does not sit on a cushion, does not hold a vehicle handle with two hands, and does not rotate wheels is shown, at the moment, the vehicle owner is far away from the vehicle, an alarm HA is needed to give an alarm to remind the vehicle owner that articles are omitted;
the first pressure sensor YL01 has an input, 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 have no input, and corresponding sensor contacts do not act. Coils of the first alarm relay KA01 and the second alarm relay KA02 are not electrified, a first normally closed contact KA01-1 of the first alarm relay, a second normally closed contact KA01-2 of the first alarm relay, a first normally closed contact KA02-1 of the second alarm relay and a second normally closed contact KA02-2 of the second alarm relay are all kept in a closed state, coils of the first alarm circuit switching relay KB01 and the second alarm circuit switching relay KB02 are electrified, the first contact KB01-1 of the first alarm circuit switching relay and the first contact KB02-1 of the second alarm circuit switching relay act, and the alarm HA is connected with a power supply to send an alarm signal.
Through five sensors, whether the vehicle is kept away from to the detection car owner, control and set up third pressure sensor YL03 on the handle respectively, can adapt to the habit of partial crowd single hand control car, effectively improve alarm device's reliability. Embodiment 1 can avoid under the car owner waits for the traffic lights, pushes away the car and chats with friend etc. the alarm HA wrong report is alert, reduces user's experience and feels.
In order to avoid the situation that the alarm device cannot be normally used due to the fault of the alarm relay in the control module, the embodiment of the invention realizes the backup of the 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 alarm line backup can be realized, and device and line redundancy can not be caused. The alarm relay and the alarm line switching relay are excessively arranged, the utilization rate of devices can be reduced, the cost is increased, and unnecessary waste is caused.
In embodiment 1, backup of the alarm line is realized by providing two alarm relays and two alarm line switching relays. When the using state that no alarm is needed 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 cannot be disconnected, the coil of the first alarm line switching relay KB01 is electrified, 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 therefore the false alarm of the alarm HA is avoided. Meanwhile, a 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, a 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 connected with a power supply due to the fact that the second normally closed contact 02-2 of the second alarm relay is disconnected, the alarm HA cannot send out an alarm signal, and the influence of the first alarm relay KA01 on embodiment 1 due to the fact that the first alarm relay KA01 breaks down is effectively eliminated. If the second warning relay KA02 fails, the working principle of embodiment 1 is the same as that of the first warning relay KA01, and the description thereof is omitted. Only when first alarm relay KA01 and second alarm relay KA02 all break down, just can normally work embodiment 1, through setting up a plurality of alarm relays and alarm line switching relay, 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 example 2 is also a buzzer with a light.
After coils of the first alarm relay KA01, the second alarm relay KA02 and the third alarm relay KA03 are connected in parallel, the first alarm relay, the second alarm relay and the third alarm relay are connected in series with the rotating speed sensor ZS01, the second pressure sensor YL02 and the third pressure sensor YL 03; the first normally closed contact KA01-1 of the first alarm relay is connected with a coil of a 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 alarm line switching relay KB01-1 in series; the first normally closed contact KA02-1 of the second alarm relay is connected with a coil of a 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 a 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 a coil of a 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 respectively 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; the normally open end of the first contact KB03-1 of the third alarm line switching relay is respectively 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; the common 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 line are the same as those in embodiment 1, and are not described herein again. When one or two of the three alarm relays have faults, the embodiment 2 can still work normally, and the embodiment 2 can not work normally only when all the three alarm relays have faults.
The control module of embodiment 2 further comprises a time delay relay KT01 and a silencing button SA01, wherein a coil of the time delay relay KT01 is connected in series with the first pressure sensor YL01, and a first contact KT01-1 of the time delay relay is respectively connected in series 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; the silencing button SA01 is connected in series between the first pressure sensor YL01 and the alarm HA.
In practical use, as the owner usually puts articles into the basket and then unlocks the lock, the first pressure sensor YL01 has an input, and the rotation speed sensor ZS01, the second pressure sensor YL02 and the two third pressure sensors YL03 have no inputs. In order to avoid the alarm HA alarming during the unlocking of the vehicle owner, the control module is provided with a delay starting function, namely, a delay is carried out through a delay relay KT01. When the first pressure sensor YL01 HAs input, the coil of the time delay relay KT01 is electrified, the first contact KT01-1 of the time delay relay cannot be immediately closed, and in the time delay, even if the rotating speed sensor ZS01, the second pressure sensor YL02 and the two third pressure sensors YL03 have no input, the alarm HA cannot be connected with a power supply and cannot give an alarm because the first contact KT01-1 of the time delay relay is in an off state; after the time delay is finished, the first contact KT01-1 of the time delay relay is closed, and the embodiment 2 judges whether the alarm needs to be given according to the states of the five sensors. According to different habits of each person, the delay time of the delay relay KT01 is set to be 5-20 s, sufficient unlocking time is reserved for a vehicle owner, and in embodiment 2, the delay time of the delay relay KT01 is set to be 10 s.
After the vehicle owner receives the alarm signal, the alarm signal can be turned off through the silencing button SA01, the silencing button SA01 is pressed, the contact of the silencing button SA01 is disconnected, the alarm HA is disconnected with the power supply, and the alarm stops giving an alarm.
The embodiment of the invention detects whether the owner is far away from the vehicle through the five sensors, can adapt to different use situations and vehicle control habits of different people, accurately judges whether to alarm, prevents false alarm and effectively improves the reliability of the embodiment of the invention; avoid waiting for the traffic lights, pushing under the car and chatting with friend's the circumstances such as car owner, alarm HA wrong report is alert, reduces user's experience and feels. Through time delay relay KT01, realize the car owner and put into the basket with article after, the function of 5~20s start-up warning of time delay prevents that alarm HA from sounding when the car owner unblanks, uses more to have the hommization. Through a plurality of alarm relays, a plurality of alarm lines can be constructed, the alarm relays and the alarm line switching relays are arranged in a one-to-one correspondence manner, and through the alarm line switching relays, mutual switching among the alarm lines can be realized; when part of the alarm relays have faults, the alarm relays with the faults can be cut off through the corresponding alarm line switching relays, and the normal work of the embodiment of the invention is maintained through the rest alarm lines where the alarm relays capable of working normally are located. Only when all the alarm relays have faults, the embodiment of the invention cannot be normally used, and the reliability of the embodiment of the invention is effectively improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
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 circuit; the rotating speed sensor, the second pressure sensor and the two third pressure sensors are connected in parallel; the rotating speed sensors are arranged on wheels, the first pressure sensor is arranged on a bicycle basket, the second pressure sensor is arranged on a cushion, and the two third pressure sensors 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, coils of each alarm relay are connected in parallel, and the coils of each alarm relay are respectively connected with the rotating speed sensor, the second pressure sensor and the third pressure sensor in series; each alarm relay is connected with each alarm circuit 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 circuit 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 circuit switching relay in series; the normally open end of the first contact of each alarm line switching relay is respectively connected with the normally closed ends of the first contacts of other alarm line switching relays; and 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.
2. The article loss prevention alarm device of claim 1, wherein the control module further comprises a time delay relay, a coil of the time delay relay is connected in series with the first pressure sensor, and a first contact of the time delay relay is connected in series with a second normally closed contact of each alarm relay.
3. An article loss prevention alarm device according to claim 1 or claim 2, wherein the control module further comprises a mute button, the mute button being connected in series between the first pressure sensor and the alarm.
4. 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.
5. The article loss prevention alarm device according to claim 1, wherein the alarm is an indicator light, a buzzer or a buzzer with a light.
6. 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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| CN113256947B (en) | 2023-11-10 |
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