CN220642198U - Escalator automatic braking system and automatic braking escalator - Google Patents

Abstract

The utility model relates to an escalator automatic braking system and an escalator, comprising: a touch sensing unit comprising a touch pad and a capacitor sensor; the touch piece is arranged on an inner side wall skirtboard of the escalator; the recognition unit comprises an ambient sound acquirer and a voice recognition chip; and the control unit is connected with the capacitance sensor and the voice recognition chip and is also connected with the braking unit of the escalator. According to the utility model, the touch sensing unit is combined with the identification unit, and a plurality of trigger braking modes are added, so that when a person falls down or a hand clamping accident occurs on the elevator and needs to ask for help, the elevator can brake for the first time, the touch condition of a large person and a small child is detected by adding the capacitance threshold value, so that the possibility that the small child touches by mistake to trigger emergency braking is reduced, meanwhile, the possible intermittent touch condition during falling is also considered, various conditions are considered, and the secondary injury of the elevator accident to the person is reduced.

Description

Escalator automatic braking system and automatic braking escalator

Technical Field

The utility model relates to the technical field of escalator safety protection, in particular to an escalator automatic braking system and an escalator with an automatic braking function.

Background

Nowadays society hand elevator is visible everywhere, spreads over each mall, subway station, gives people and produces very big facility, but hand elevator also has a fairly big hidden danger simultaneously, when the personnel of taking the staircase carelessly tumbles or takes place dangerous condition, need have the operator to press the stop button manually, just the staircase can stop, its defect lies in: by means of manual response, the response speed is low, and the stop can not be immediately performed when dangerous situations occur.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art, and provide the escalator automatic braking system which utilizes the sensor to identify dangerous situations on the escalator, and when the dangerous situations occur, the escalator is immediately controlled to stop, so that the problem that casualties are aggravated because the escalator is not braked emergently for the first time is solved as much as possible.

In order to solve the technical problems, the utility model provides an escalator automatic braking system which is arranged on a escalator, wherein the escalator comprises a braking unit, and the escalator comprises:

a touch sensing unit including a touch sheet made of a conductive material, and a capacitor sensor connected to the touch sheet; the touch sheet is arranged on the inner side wall apron board of the escalator and is arranged along the length direction of the inner side apron board;

the recognition unit comprises an ambient sound acquirer and a voice recognition chip connected with the ambient sound acquirer;

and the control unit is connected with the capacitance sensor and the voice recognition chip and is also connected with the braking unit of the escalator.

As a preferable mode of the utility model, a connecting rod is arranged on the inner side wall skirt board of the escalator, and the touch piece is arranged on the surface of the connecting rod.

In a preferred embodiment of the present utility model, the connecting rod is made of an insulating material.

As a preferred mode of the present utility model, the contact pieces are arranged along the length direction of the link.

As a preferred mode of the present utility model, the width of the touch pad is smaller than the width of the link.

As a preferred mode of the present utility model, the touch sheet is arranged along a central axis direction of the link.

As a preferred mode of the present utility model, the link is connected to the inner skirt panel by a connecting member.

As a preferable mode of the utility model, the elevator further comprises an alarm unit which is arranged on the escalator and is connected with the control unit.

As a preferred embodiment of the present utility model, the touch sheet is strip-shaped.

An escalator comprising an escalator automatic braking system according to any one of the preceding claims.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1. identifying a touch at a designated location by the touch sensing unit, thereby identifying the occurrence of a hazard on the escalator;

2. the voice help information in the environment sound is acquired through the identification unit, so that the danger on the escalator is identified;

3. the touch sensing unit is combined with the identification unit, multiple modes for triggering the braking system are added, and the touch conditions of adults and children are detected by adding the capacitance threshold, so that the possibility that the children touch by mistake to trigger emergency braking is reduced, meanwhile, intermittent touch conditions possibly existing in falling are also considered, and multiple conditions are considered. The secondary injury of elevator accidents to personnel is greatly reduced.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.

Fig. 1 is a schematic view of an elevator outer structure of an escalator automatic braking system and an escalator of the present utility model.

Fig. 2 is a schematic view of an escalator automatic braking system and finger contact links of an escalator of the present utility model.

Fig. 3 is a schematic view of an escalator automatic braking system and palm contact links of an escalator of the present utility model.

Fig. 4 is a schematic view of an escalator automatic braking system and microphone of an escalator of the present utility model.

Fig. 5 is a schematic diagram of an escalator automatic braking system and a speaker for an escalator of the present utility model.

Fig. 6 is a schematic diagram of an escalator automatic braking system and a control unit for an escalator of the present utility model.

Fig. 7 is a schematic diagram of the single-chip microcomputer program of the multi-scheme braking system of the present utility model for dealing with an emergency situation in a escalator.

Description of the specification reference numerals: 1. a hand elevator; 1-1, an inner skirt guard; 1-2, an outer skirt guard; 2. a connecting rod; 2-1, a touch sheet; 2-2, fingers; 2-3, palm; 3. a microphone; 4. an alarm speaker; 5. a voice recognition chip; 6. a capacitive sensor; 7. a control unit power supply; 8. a first switch; 9. a driving power supply; 10. a second switch; 11. a driving motor; 12. a single chip microcomputer; 13. and a relay.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Example 1

Referring to fig. 1 to 7, the present embodiment provides an escalator automatic brake system provided to a escalator 1, and the escalator 1 includes a brake unit. The escalator automatic braking system comprises: the device comprises a touch sensing unit for recognizing the touch of a user, a voice information recognition unit for recognizing the environmental sound, and a control unit for judging and driving the braking unit to act.

The touch sensing unit comprises a touch sheet 2-1 made of conductive materials and a capacitor sensor connected with the touch sheet 2-1. The touch piece 2-1 is arranged on the inner side wall apron board 1-1 of the escalator 1 and is arranged along the length direction of the inner side wall apron board 1-1.

Specifically, the touch pad 2-1 is made of electroplated metal with good electrical performance, and an inductive capacitance exists between any two conductive objects, so that when the finger 2-2 or the palm 2-3 of a person touches the metal touch pad 2-1, the capacitance of a capacitor formed between the finger and the metal touch pad 2-1 is proportional to the contact area. As shown in fig. 2 and 3, the contact areas of different limbs with the metal touch pad 2-1 have a significant effect on the capacitance variation. The larger the contact area between the limb and the metal touch panel 2-1, the larger the capacitance formed by the metal panel and the limb. Therefore, if the user touches the metal touch panel 2-1 with the near-finger area or near-palm area, a higher capacitance value change can be perceived with the palm than when touching with the finger. An electrical signal can be rapidly transferred to the capacitive sensor 6.

Because when danger happens, people often fall down on the escalator 1, and at the moment, the people are in a low position on the escalator 1, the touch piece 2-1 is arranged on the inner side wall skirt board 1-1 of the escalator 1 in order to be convenient for the people needing help to trigger in time. The inner side wall skirt board 1-1 is generally arranged at the inner side of the escalator 1 and is close to a pedal or a floor of the escalator 1, and when a person falls down or is in a low position, the inner side wall skirt board 1-1 can be easily touched. Preferably, the touch piece 2-1 may be disposed on the inner side wall skirt board 1-1 at both sides of the escalator 1.

As one embodiment, a connecting rod 2 is arranged on the inner side wall skirt board 1-1 of the escalator 1, and the touch piece 2-1 is arranged on the surface of the connecting rod 2. The connecting rod 2 is made of insulating materials. The contact pieces are arranged along the length direction of the connecting rod 2. The width of the touch sheet 2-1 is smaller than the width of the link 2. The touch pads 2-1 are arranged along the central axis direction of the connecting rod 2, and the touch pads 2-1 are strip-shaped. The connecting rod 2 is connected with the inner side wall apron board 1-1 through a connecting piece. The connecting rod 2 can be used as an armrest, when a person falls down, the connecting rod 2 can be grasped to keep the balance of the body or prevent the body from rolling off, the touch piece 2-1 is arranged on the connecting rod 2, and when the person grasps the connecting rod 2, the touch piece 2-1 can monitor touch.

The capacitance sensor 6 uses various types of capacitors as sensing elements, because the precisely measured changes will cause the capacitance of the capacitors to change, and the change in capacitance can be converted into an electrical signal for output according to a precisely measured circuit. When human skin touches or approaches the touch pad 2-1, the capacitive sensor 6 can measure different capacitances on the touch pad 2-1, and a threshold value can be added into the capacitive sensor 6 according to the influence principle of the contact area of limbs on the capacitance, and the capacitive sensor has the advantages that the touch of other objects such as shoes, clothes and the like can be eliminated, the detection accuracy is improved, meanwhile, according to the difference of the sizes of the palms of a large person and a small child, the difference of the contact areas of the touch pad 2-1 can be selected to be a proper threshold value, and the false touch emergency caused by curiosity of the small child can be avoided. At this time, if the child has an emergency, the emergency braking can also be triggered by the voice recognition unit.

The recognition unit comprises an ambient sound acquirer and a voice recognition chip 5 connected with the ambient sound acquirer.

Specifically, the environmental sound acquirer is a microphone 3, and is configured to receive environmental sound near the escalator 1, and the environmental sound acquirer is disposed on the inner side wall skirt board 1-1 of the escalator 1. The environment sound acquirer can be provided with a plurality of, is evenly distributed on the inner side wall apron board 1-1 of the escalator 1, and specifically monitors the environment sound on the escalator 1. The voice recognition chip 5 may employ an LD3320 voice recognition chip 5 for recognizing voice information in the voice stream acquired by the ambient sound acquirer and recognizing a specified voice signal therein, for example: rescue, quick help, etc.

As one embodiment, the escalator automatic braking system further comprises an alarm unit, and the alarm unit is arranged on the escalator 1 and connected with the control unit.

Specifically, the alarm unit is an alarm speaker 4, and is disposed at the outer side of the escalator 1, and may be provided with a plurality of alarm speakers. The alarm unit is used for sending out a warning to the outside and prompting the occurrence of danger of other people so as to realize help seeking or warning.

The control unit is connected with the capacitive sensor 6 and the voice recognition chip 5, and is also connected with the braking unit of the escalator 1.

Specifically, referring to the drawings, the control unit may include an stm32 single-chip microcomputer 12, a first switch 8, a second switch 10, a relay 13, and the like, and form a loop through wires. The braking unit includes a drive motor 11 and the like.

The capacitive sensor 6 and the voice recognition chip 5 are respectively used for sensing whether an accident occurs on the escalator 1, the two sensors feed detected information back to the singlechip 12, and the singlechip 12 controls the relay 13 to open and close, so that the brake system circuit formed by the driving motor 11 and the alarm loudspeaker 4 is controlled to be connected and disconnected. Due to the fact that emergency braking is needed for the first time when accidents occur to personnel, secondary injury is prevented from being aggravated. The method is characterized in that the danger of wrestling of the hand elevator 1 and the hand elevator 1 is solved, the voice stream is received through the arranged microphone 3, the voice stream is input into the LD3320 voice recognition chip 5, the LD3320 voice recognition chip 5 can easily realize voice conversion, multi-environment sound control is realized, real-time voice is converted into words to be processed and analyzed, 50 keywords are set in advance, and the non-specific person voice recognition technology ASR technology is a technology based on keyword list recognition. For the emergency braking system, the item content of the list is 50 short, the phrases related to the distress content of the personnel are classified, such as words triggered only at the time of crisis, such as life saving, people coming, quick stopping and the like, when specific keywords exist in voice instructions of victims, the captured signals are transmitted to the singlechip 12, and the singlechip 12 judges that emergency braking is finished. And a capacitive sensor 6 and a contact piece provided via the link 2. According to the principle of influence of the contact area of the limbs on the capacitance, a threshold value can be added into the capacitance sensor 6, the capacitance sensor 6 transmits signals to the singlechip, the singlechip judges the time change of the signals of the capacitance sensor 6, so that the time length of the capacitance change when the limbs are in contact is judged, when the capacitance exceeds the threshold value, the singlechip starts to detect the time length of the change of the capacitance, the detection time length is 1s, and when the time length of the increase of the capacitance exceeds the specified detection time length of 1s, the singlechip sends out signals to complete emergency braking. In addition, in order to take account of the fact that the limb may be intermittently in contact with the touch sheet 2-1 after a drop, the calculation time is started when the capacitance sensor 6 detects that the total capacitance exceeds the threshold value, and when the number of times the total capacitance exceeds the threshold value is higher than twice within this 1s time, the single chip sends a signal to the emergency brake circuit. The occurrence of the false touch condition can be avoided by properly selecting the threshold value, and the false touch condition of the palm caused by curiosity of the child can be avoided by referring to the difference of the palm areas of the child and the adult, and the specific flow is shown in the figure 7. The connecting rod 2 can also help personnel stabilize the body and avoid the injury caused by continuous rolling.

The first switch 8 is used for manually controlling the conduction and closing of the circuit of the singlechip 12 by utilizing the original emergency brake switch of the escalator 1, thereby controlling the reset of the relay 13.

The working principle of the emergency braking system of the escalator 1 is as follows:

when the escalator 1 works normally, no casualties are caused, the triggering signals are not collected by the capacitive sensor 6 and the voice recognition chip 5, the relay 13 does not receive the signals of the singlechip 12, the relay 13 is normally open at the moment, the driving motor 11 and the driving power supply 9 are connected, the escalator 1 runs normally, and the alarm loudspeaker 4 does not work. When a person on the escalator 1 is unexpected, the LD3320 voice recognition chip 5 and the capacitance sensor 6 receive external information and transmit the external information to the singlechip 12 to control the relay 13 to operate, and the relay 13 is electrified to attract the second switch 10 to disconnect the driving motor 11 from the driving motor 11, so that the driving motor 11 stops running, and the escalator 1 stops running. The second switch 10 is turned on to the alarm speaker 4, and the alarm speaker 4 sends out an alarm to remind the escalator 1 of an accident, and then attracts personnel to go to rescue. After the danger is relieved, the person can manually press the first switch 8, and at this time, the voice recognition chip 5, the capacitive sensor 6, the control unit power supply 7 and the first switch 8 are disconnected by wires to form an open circuit. The relay 13 is powered off, the second switch 10 is reset to the normally open position at the moment, the driving power supply 9 and the driving motor 11 are connected, and the escalator 1 is restored to normal operation.

The multi-scheme braking system for dealing with the emergency of the escalator 1 is shown in fig. 1, and the escalator structure is additionally provided with a connecting rod 2, a touch sensing unit, an identification unit, an alarm unit and a control unit on the basis of the original escalator. The connecting rod 2 is located in the escalator 1 and above the skirt board obliquely, the touch piece 2-1 is installed on the inner side of the connecting rod 2 as shown in fig. 1, the environment sound acquirer is arranged in the escalator 1 and near the gap between the skirt board and the steps, 2 skirt boards are arranged along one side of the skirt boards, and 4 skirt boards on two sides are oppositely arranged. The alarm units are respectively arranged on the outer sides of the outer side wall skirting boards 1-2 of the escalator 1 as shown in fig. 4, and are respectively arranged at the entrance and the exit of the escalator 1.

When no accident occurs on the escalator, the escalator operates normally, and when the escalator occurs, the touch unit and the recognition unit sense the state of a victim, and the singlechip controls the relay to make the escalator emergently brake and give an alarm to remind surrounding people. The utility model increases the chance of self-protection of the victim, combines the touch sensing unit with the identification unit when the victim happens accident, increases various modes for triggering the braking system, detects the touch condition of adults and children by adding the capacitance threshold value, thereby reducing the possibility of the child to mistakenly touch and trigger emergency braking, and simultaneously considers various conditions by considering the possible intermittent touch condition when falling, thereby greatly reducing the secondary injury of elevator accidents to personnel.

Example two

Referring to fig. 1, this embodiment provides an escalator with an escalator automatic braking system as described in the first embodiment, so that the first embodiment has all advantages, and is not described herein.

According to the multi-scheme braking system for dealing with the emergency of the escalator, a set of voice recognition and connecting rod built-in capacitance sensor double-insurance braking system is added on an existing elevator emergency braking button, because an elevator accident is frequently caused by overlarge gaps between a skirt board and steps, a plurality of children curiosity work causes an elevator hand clamping accident, gaps exist between the elevator speed and the steps, a plurality of old people and a plurality of passengers carrying large pieces of luggage are caused by the elevator wrestle accident caused by the sudden heart or the unstable center of gravity, at the moment, the vickers cannot trigger an original emergency braking switch by themselves or the situation that the few vickers of the elevator occur danger accidents, the body injury of the vickers is increased, in order to deal with the situations, two emergency braking modes are specially designed, when the vickers are involved in the elevator, cry or help are likely to occur, the body of the vickers is necessarily close to a microphone arranged on two sides of the elevator skirt board, the cry or help seeking chip can collect the cry or help signal, the voice microphone can not trigger the original emergency braking signal, the vickers are triggered by the voice sensor chip, the voice sensor is arranged on the skirt board, and the single chip is used for triggering the elevator, the control system is used for triggering the alarm signal to be sent by the elevator, and the single chip is set up when the elevator is triggered, and the alarm signal is triggered by the single chip is triggered, and the single chip is set on the skirt board or the human signal is triggered, and the human signal is sent by the human signal is the human-safety signal is sent by the human voice sensor, and is the human voice and is the human.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims (10)

1. Escalator automatic braking system sets up in escalator, escalator includes brake unit, its characterized in that includes:

a touch sensing unit including a touch sheet made of a conductive material, and a capacitor sensor connected to the touch sheet; the touch sheet is arranged on the inner side wall apron board of the escalator and is arranged along the length direction of the inner side apron board;

the recognition unit comprises an ambient sound acquirer and a voice recognition chip connected with the ambient sound acquirer;

and the control unit is connected with the capacitor sensor and the voice recognition chip and is also connected with the braking unit of the escalator.

2. The escalator automatic braking system according to claim 1, wherein a link is provided on an inner side skirt of the escalator, and the touch tab is disposed on a surface of the link.

3. An escalator automatic braking system according to claim 2, wherein said connecting rod is of an insulating material.

4. An escalator automatic braking system according to claim 2, wherein said touch tabs are disposed along the length of said connecting rod.

5. An escalator automatic braking system according to claim 2, wherein the width of said touch pad is less than the width of said connecting rod.

6. An escalator automatic braking system according to claim 2, wherein said touch pad is disposed along a central axis of said connecting rod.

7. An escalator automatic braking system according to claim 2, wherein said connecting rod is connected to said inner skirt panel by a connecting piece.

8. The escalator automatic braking system according to claim 1, further comprising an alarm unit provided to said escalator, connected to said control unit.

9. An escalator automatic braking system according to claim 1, wherein said touch pad is strip-shaped.

10. An escalator comprising an escalator automatic braking system according to any one of claims 1 to 9.