CN220865260U - Safety protection system for power exchange process - Google Patents

Abstract

The application discloses a safety protection system in a power exchange process, wherein a power exchange trolley for carrying out battery exchange on a power exchange vehicle and a power exchange area for parking the power exchange vehicle are arranged in a power exchange station; according to the technical scheme, the safety protection system in the power change process is arranged on two sides of the moving channel of the power change trolley along the moving direction of the power change trolley, so that the occurrence of injury accidents caused by shuttling of personnel in the power change station or the occurrence of damage to equipment in the power change station caused by collision of the power change trolley and the power change vehicle due to improper parking positions of the power change trolley can be avoided, and the safety and reliability of the power change process are improved.

Description

Safety protection system for power exchange process

Technical Field

The application belongs to the technical field of power exchange stations, and particularly relates to a safety protection system in a power exchange process.

Background

With the development of new energy automobile power conversion technology and the advantages of short electric energy supply time and low purchasing cost, new energy automobile power conversion is more and more popular with users.

When the battery replacement vehicle is used for replacing the battery in the battery replacement station, the battery replacement operation needs to be carried out by means of the battery replacement trolley, and in the process, if personnel shuttle or enter the battery replacement area in the battery replacement station, injury accidents are easily caused, or the battery replacement vehicle is impacted with the battery replacement vehicle due to improper parking positions, so that damage to equipment in the battery replacement station occurs.

Therefore, how to ensure that the battery-exchanging vehicle exchanges electricity in the battery-exchanging station is a technical problem to be solved.

Disclosure of utility model

The application provides a safety protection system in a power exchange process, which aims to solve the technical problem of how to ensure that a power exchange vehicle exchanges power in a power exchange station.

The technical scheme adopted by the application is as follows:

According to a first aspect, an embodiment of the application provides a safety protection system in a power exchange process, which is applied to a power exchange station, wherein a power exchange trolley for carrying out battery exchange on a power exchange vehicle and a power exchange area for parking the power exchange vehicle are arranged in the power exchange station, the power exchange area is arranged in a driving channel of the power exchange station along the driving direction of the power exchange vehicle, the power exchange trolley can move back and forth relative to the power exchange area, and the safety protection system in the power exchange process is arranged on two sides of the moving channel of the power exchange trolley along the moving direction of the power exchange trolley.

In this scheme, trade electric process safety protection system along the direction of movement of trading the electric dolly set up in the both sides of the travel channel of trading the electric dolly, can avoid personnel to shuttle in trading the power station and cause the emergence of injury accident or trade the electric dolly and lead to the condition emergence of the damage that the striking caused trading the electric station internal equipment with trading the electric vehicle because of parking position is improper to lead to trading the electric dolly, improves the security and the reliability of trading the electric process.

Optionally, the moving channel is perpendicular to the driving channel, and the safety protection system for the electricity exchanging process is arranged at two sides of the area of the moving channel in the driving channel.

In the scheme, the moving channel and the driving channel are arranged to be mutually perpendicular, the area corresponding to the moving channel and the area corresponding to the driving channel are partially overlapped, the safety protection system in the power conversion process is arranged on the two sides of the partially overlapped area and located on the moving channel, the detection area of the safety protection system in the power conversion process can cover the inlet of the foreign matter entering the power conversion area in a targeted manner, real-time detection of the inlet of the foreign matter entering the power conversion station is realized, and the accuracy of foreign matter intrusion detection is improved.

Optionally, the driving channel includes a channel opening disposed on at least one sidewall on two sides of the driving channel, and the power conversion process safety protection system includes: and the sensors are arranged at two ends of the opening of the passage along the running direction, are arranged towards the running passage and form an electronic fence along two sides of the moving passage.

In this scheme, the driving passageway has the passageway opening of arranging at least one lateral wall on driving passageway both sides in, and the sensor is installed respectively at passageway open-ended both ends, forms the electronic fence that covers the removal passageway towards driving passageway to lower cost, high reliability and maintenance are simple and easy electronic fence cover change electric region or the access & exit of the external intercommunication of removal passageway realize the accurate detection of personnel or object that invade through the driving passageway. Optionally, the side walls on two sides of the driving channel are respectively provided with a channel opening which is respectively used as a first opening and a second opening; the sensor comprises grating sensors arranged at two ends of the first opening and the second opening, so that the same ends of the first opening and the second opening respectively form an electronic fence, and the area of the moving channel in the driving channel is covered.

In this scheme, through the grating sensor that has higher sensitivity at the same tip of first opening and second opening formation along the grating fence of moving channel direction, realize not receiving the physical object to block contactless cover at the access & exit, the installation is simple, and does not influence the accurate protection of realization under the circumstances of vehicle business turn over.

Optionally, the grating sensor includes a first transmitting end disposed at an end of the first opening and a first receiving end disposed on the second opening and at the same end as the first opening, and the first transmitting end and the first receiving end cooperate to form a first grating harness and a second grating harness at the same end of the first opening and the second opening, respectively.

In this scheme, a pair of first transmitting end and first receiving end are arranged to the same tip of first opening and second opening to form first grating pencil and second grating pencil in the vehicle access & exit of moving channel both sides respectively, can be accurate form the fence in moving channel both sides, in order to guarantee that the cover boundary of fence is outside moving channel, can effectually prevent that the power conversion dolly from touching the fence mistake in moving process.

Optionally, the vehicle is a heavy-duty vehicle, the battery pack is locked under a beam of the heavy-duty vehicle, the first grating harness can pass through the battery pack and a rear wheel of the heavy-duty vehicle, and the second grating harness can pass through the battery pack and a front wheel of the heavy-duty vehicle.

In the scheme, the vehicle is a heavy-truck vehicle, the battery pack is locked below a vehicle beam of the heavy-truck vehicle, gaps exist between the battery pack and front wheels of the heavy-truck vehicle and rear wheels of the heavy-truck vehicle, after the vehicle is parked in place, the first grating wire harness can pass through the battery pack and the rear wheels of the heavy-truck vehicle, and the second grating wire harness can pass through the battery pack and the front wheels of the heavy-truck vehicle. After the vehicle is in place, the vehicle can not obstruct the first grating harness and the second grating harness, so that false triggering of the vehicle on the first grating harness and the second grating harness can be prevented, and the intrusion detection function of the first grating harness and the second grating harness can be guaranteed to normally operate in the power exchange process.

Optionally, the sensor includes a reflective photoelectric sensor, including a second transmitting end and a second receiving end, and the second transmitting end and the second receiving end of the same reflective photoelectric sensor are disposed on each of two ends of the opening of the channel, and an included angle between a light transmitting direction of the second transmitting end and a moving direction of the electricity changing trolley is smaller than a preset included angle.

In this scheme, adopt reflection-type photoelectric sensor to form the fence, only need set up at passageway open-ended one end reflection-type photoelectric sensor can, need not both ends all install, reduce the installation degree of difficulty simultaneously, not only can realize the safety protection effect of fence through reflection-type photoelectric sensor, can also confirm the general outline of invasion article through reflection light, and then can realize the basic detection of the kind of invasion article at least.

Optionally, the height of the electronic fence covers at least the height range of the battery changing trolley.

In this scheme, to being higher than the invasion of a part of trading the electric dolly, certain part of the automobile body of trading the electric dolly or personnel's health portion stretch into trading the electric dolly altitude range or be higher than the condition of trading the electric dolly, if the height of electronic fence is not enough, can appear detecting the condition, and the altitude of electronic fence covers trading the altitude range of electric dolly at least, can realize the contact range of omnidirectional cover trading the electric dolly, improves the security of trading the electric in-process.

Optionally, the power conversion process safety protection system further comprises: and the safety loop is respectively and electrically connected with the sensor and the power changing trolley and controls the power changing trolley to stop or start under the triggering of the sensor.

In the scheme, under the condition that the electronic fence is invaded, in order to ensure safety, the power changing trolley can be controlled to stop running through the safety loop, after the electronic fence is invaded, the sensor is triggered, and then the safety loop is triggered to control the power changing trolley to stop. After the invasion disappears, the safety loop can be triggered to control the power-changing trolley to restart operation, so that when the invasion occurs, the power-changing trolley stops operation, the safety of personnel or equipment is ensured, and after the invasion disappears, the power-changing trolley resumes operation, and the smooth power change is ensured.

Optionally, the safety loop comprises a control switch connected in series between the power supply and the power exchange trolley, and the control end of the control switch is connected with the output end of the sensor.

In this scheme, the electronic fence is triggered, and the output of sensor communicates trigger signal to the control end that sets up the control switch at power and trading electric dolly to control enabling end disconnection power and trading electric dolly to in time control trading electric dolly and stopping battery replacement or removal.

Optionally, the power conversion process safety protection system further comprises: the controller is connected with the sensor and is used for receiving an in/out trigger signal of the power conversion vehicle entering the power conversion area or exiting the power conversion area and outputting a disabling signal to the sensor; and outputting an enabling signal to the sensor when receiving an in-place trigger signal that the power change vehicle reaches a power change area.

In the scheme, the controller can characterize the entering or exiting of the vehicle when receiving the entering/exiting trigger signal of the vehicle entering or exiting the power change area, and at the moment, the sensor can be shielded to prevent the problem of false alarm caused by triggering the grating sensor when the vehicle enters or exits the power change area.

Optionally, the power conversion process safety protection system further comprises: the vehicle detection device is connected with the controller, is installed towards the driving channel and is used for detecting that the electric vehicle enters the electric conversion area or exits the electric conversion area, and the electric vehicle reaches the electric conversion area and outputs an in-place trigger signal and an out-of-place trigger signal to the controller.

In the scheme, the triggering signals of the power change vehicle entering the power change area or exiting the power change area are collected through the vehicle detection device, when the fact that the power change vehicle starts to enter the power change area or exits the power change area is detected, the triggering signals of the entering station or exiting station are output to the controller, the controller controls the sensor to be disabled based on the triggering signals so as to shield the electronic fence, and the power change vehicle cannot trigger the electronic fence in the entering station or exiting station process, so that false alarm or error protection is caused. After the vehicle detection device is in place, a trigger signal is output to the controller in place, the controller controls the sensor to enable, the electronic fence shields and contacts, and the intrusion detection function is recovered, so that the shielding and electronic fence recovery time is accurately determined.

Optionally, in the power conversion process safety protection system: the vehicle detection device multiplexes the sensors.

In this scheme, detect the condition of standing by the vehicle through the sensor, need not to additionally set up other follow vehicle detection device, when making the electric process safety protection system simpler that trades, can be accurate realization to the detection of the condition of standing by the vehicle, to the back of standing by the vehicle, can detect the condition of putting in place to the vehicle through the triggering condition of electronic fence, realize the detection of information such as the parking position of trading the electric vehicle, parking angle, avoid automobile body inclination too big or park and not put in place and lead to trading the electric dolly to bump with trading the electric vehicle when carrying out the battery replacement, cause trading the electric dolly, battery package, trade the damage of electric vehicle etc. further improve the reliability of trading the electric process.

According to a second aspect, an embodiment of the present application provides a control method of a power conversion process safety protection system, which is applied to the power conversion process safety protection system of any one of the above embodiments, where the power conversion process safety protection system includes a safety detection unit, and the control method includes: acquiring a trigger signal output by a safety protection system in the power exchange process; when the trigger signal is an intrusion trigger signal that the moving channel of the power changing trolley is intruded, the power changing trolley is controlled to stop running.

In the scheme, the safety protection system in the power change process is arranged on two sides of a moving channel of the power change trolley along the moving direction of the power change trolley, and when personnel and/or objects trigger the safety protection system in the power change process, the safety protection system in the power change process outputs a trigger signal that the moving channel of the power change trolley is invaded, and the power change trolley is controlled to stop running based on the invasion trigger signal. The device can avoid the occurrence of injury accidents caused by personnel shuttling in the power exchange station or the occurrence of damage to equipment in the power exchange station caused by collision between the power exchange trolley and the power exchange vehicle due to improper parking positions, and improves the safety and reliability of the power exchange process.

Optionally, the control method of the safety protection system in the power exchange process further comprises the following steps: detecting the trigger type of an intrusion trigger signal; when the trigger type is a personnel invasion trigger signal and the duration of the personnel invasion trigger signal reaches a first preset duration, the power-changing trolley is controlled to stop running.

In the scheme, when the detection of the trigger type is personnel invasion, the condition that personnel enter a moving channel or the condition that the personnel are touched by mistake in a short time is judged continuously through the duration of the personnel invasion trigger signal, and then the power-changing trolley can be immediately controlled to stop running according to the condition that the personnel enter the moving channel. The system aims at the condition that personnel touch by mistake in a short time and cannot enter a moving channel, can directly output an alarm to carry out the alarm, ensures personnel to pay attention to safety, can carry out classification control on the battery changing trolley based on an intrusion event, reduces the frequency of controlling the battery changing trolley to stop running while guaranteeing effective safety protection in the battery changing process, and ensures the battery changing efficiency.

Optionally, the control method of the safety protection system in the power exchange process further comprises the following steps: when the trigger type is a personnel intrusion trigger signal, detecting the residual duration of the power change trolley reaching a power change area; outputting a warning signal when the remaining time period is longer than a second preset time period; and when the residual time length is less than the second preset time length, controlling the power changing trolley to stop running.

In the scheme, when the current state of the power change trolley is combined and the remaining time length of the power change trolley reaching the power change area is longer than the second preset time length, the power change trolley is characterized by just running out of the battery charging bin and still needs a certain time length to travel to the power change area, at the moment, if personnel invasion or false touch occurs, a warning signal can be output first, invasion is not eliminated in a certain period of time, the power change trolley is controlled to stop running, so that the influence on the power change efficiency is reduced as much as possible, and the personnel safety is ensured.

Optionally, the driving channel includes a channel opening disposed on at least one sidewall on two sides of the driving channel, and the power conversion process safety protection system includes: the sensors are arranged at two ends of the opening of the passage along the running direction, are arranged towards the running passage and form electronic fences along two sides of the moving passage; detecting the trigger type of the trigger signal includes: acquiring triggering dynamic information of the electronic fence, wherein the triggering dynamic information comprises triggering area information or triggering continuous state information of the electronic fence; the trigger type is determined based on the trigger dynamic information.

In the scheme, the triggering type is accurately determined by detecting the triggering dynamic information of the triggered electronic fence.

Optionally, if the power exchanging area is not parked and the electronic fences on two sides of the moving channel along the driving direction are triggered in sequence, confirming that the power exchanging vehicle enters the power exchanging area until the electronic fences on two sides of the moving channel are in an un-triggered state, and confirming that the power exchanging vehicle reaches the power exchanging area.

In the scheme, whether the vehicle is parked in place or not is accurately detected through the triggering sequence and the triggering state of the electronic fence.

According to a third aspect, an embodiment of the present application provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the power-change process safety protection control method as set forth in any one of the second aspects above.

According to a fourth aspect, an embodiment of the present application provides a power exchange station comprising a power exchange process safety protection system according to any one of the first aspects above; and/or the electronic device described in the third aspect above.

The application has the following effective effects:

The safety protection system for the power exchange process is arranged on two sides of the moving channel of the power exchange trolley along the moving direction of the power exchange trolley, so that the occurrence of injury accidents caused by shuttling of personnel in the power exchange station or the occurrence of damage to equipment in the power exchange station caused by collision of the power exchange trolley and the power exchange vehicle due to improper parking positions of the power exchange vehicle can be avoided, and the safety and reliability of the power exchange process are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic illustration of an alternative power plant arrangement for a power plant safety protection control system in accordance with an embodiment of the present application;

FIG. 2a is a schematic illustration of an alternative power plant having a battery charging compartment according to an embodiment of the present application;

FIG. 2b is a schematic illustration of an alternative power plant having two battery charging bins according to an embodiment of the application;

FIG. 3 is another schematic illustration of an alternative power plant arrangement for a power plant safety protection control system according to an embodiment of the present application;

FIG. 4 is another schematic illustration of an alternative power plant arrangement for a power plant safety protection control system according to an embodiment of the present application;

FIG. 5 is a schematic view of an alternative heavy truck vehicle inbound according to an embodiment of the application;

FIG. 6 is an electrified modular schematic view of an alternative power-change process safety protection control system according to an embodiment of the present application;

FIG. 7 is a schematic diagram of electrical connections of an alternative power-change process safety protection control system according to an embodiment of the present application;

FIG. 8 is a schematic flow chart of a method for controlling the safety protection of a power conversion process according to an embodiment of the present application;

Fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below. It should be noted that, without conflict, embodiments of the present application and features in each embodiment may be combined with each other.

In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Just as background art described, when a battery replacement vehicle is used for replacing the battery in a battery replacement station, the battery replacement operation needs to be carried out by means of the battery replacement trolley, and in the process, if someone shuttles in the battery replacement station, injury accidents are easily caused, or the battery replacement vehicle is impacted with the battery replacement vehicle due to improper parking positions, so that damage to equipment in the battery replacement station occurs.

Based on this, according to an aspect of the embodiment of the present application, as shown in fig. 1 to 4, a power-change process safety protection system 30 is provided, which is applied to a power-change station 10, wherein a power-change trolley 20 for performing battery replacement on a power-change vehicle and a power-change area 101 for parking the power-change vehicle are disposed in the power-change station 10, the power-change area 101 is disposed in a driving channel 103 of the power-change station 10 along a driving direction of the power-change vehicle, the power-change trolley 20 can move back and forth relative to the power-change area 101, and the power-change process safety protection system 30 is disposed at two sides of the moving channel 102 of the power-change trolley 20 along the moving direction of the power-change trolley 20.

As an alternative embodiment, as shown in fig. 2a and 2b, the battery charging compartment 104 in the power exchange station 10 may be one, and may be disposed on one side of the driving channel 103. Or two may be provided on both sides of the driving path 103.

As an alternative embodiment, the battery charging compartment 104 in the power exchange station 10 is one, and the power exchange process may be: the battery changing trolley 20 moves in the moving channel 102 in an empty state in a direction approaching the battery changing vehicle, removes a battery to be changed on the battery changing vehicle after moving to the battery changing area 101, moves in the moving channel 102 in a direction far away from the battery changing vehicle, enters the battery charging bin 104, loads a new battery after removing the battery to be changed, moves in the moving channel 102 in a direction approaching the battery changing vehicle again, and installs the new battery on the battery changing vehicle after moving to the battery changing area 101; after the installation is completed, the battery changing carriage 20 moves in the movement path 102 in a direction away from the battery changing area 101 until leaving the battery changing area 101.

As another alternative embodiment, the number of battery charging bins 104 in the power exchange station 10 is two, and the power exchange process may be: the two battery change carts 20 perform battery change for the same battery change cart. One of the battery change trolleys 20 moves in the moving channel 102 in a direction approaching to the battery change vehicle in an empty state, after the battery change trolley moves to the battery change area 101, the battery change trolley 20 moves in the moving channel 102 in a direction far from the battery change area 101 after the battery to be replaced on the battery change vehicle is removed; the other battery change cart 20 is loaded with a new battery, then moves in the direction approaching the battery change cart in the movement path 102, moves to the battery change area 101, then installs the new battery, and then moves in the direction away from the battery change cart in the movement path 102 until leaving the battery change area 101.

In the process of replacing the battery pack, in order to ensure the safety of the power exchanging process, people, vehicles or other objects are prevented from entering the power exchanging area 101 or entering the moving channel 102 of the power exchanging trolley 20 in the power exchanging process, or the moving channel 102 is blocked due to the fact that the power exchanging trolley is not parked in place, and safety protection is needed in the power exchanging process. In this embodiment, the safety protection system 30 for the power exchange process is disposed at two sides of the moving channel 102 of the power exchange trolley 20 along the moving direction of the power exchange trolley 20, and in the power exchange process, the power exchange trolley 20 moves back and forth along the moving channel 102, and the safety protection system 30 for the power exchange process detects whether the condition of invading the moving channel 102 of the power exchange trolley 20 exists, so that the safety of the power exchange process can be ensured.

The safety protection system 30 for the power exchange process is disposed on two sides of the moving channel 102 of the power exchange trolley 20 along the moving direction of the power exchange trolley 20, so that the detecting range of the safety protection system 30 for the power exchange process covers the moving channel 102, and after the moving channel 102 is invaded in the power exchange process, the safety protection system can accurately and timely respond to control the power exchange trolley 20 to stop, thereby preventing personnel injury and equipment damage.

According to the technical scheme, the safety protection system 30 in the power change process is arranged on two sides of the moving channel 102 of the power change trolley 20 along the moving direction of the power change trolley 20, so that the occurrence of injury accidents caused by personnel shuttling in the power change station 10 or the occurrence of equipment damage in the power change station 10 caused by collision between the power change trolley 20 and the power change trolley due to improper parking positions of the power change trolley can be avoided, and the safety and reliability of the power change process are improved.

As an exemplary embodiment, fig. 3 is a schematic diagram of another structure of an alternative power exchange station 10 according to an embodiment of the present application, and referring to fig. 3, a moving channel 102 is disposed perpendicular to a driving channel 103, and a power exchange process safety protection system 30 is disposed on both sides of a region of the moving channel 102 located in the driving channel 103.

In this embodiment, the moving channel 102 and the driving channel 103 are set to be perpendicular to each other, so that the area corresponding to the moving channel 102 and the area corresponding to the driving channel 103 are partially overlapped, the safety protection system 30 for the power conversion process is set on two sides of the partially overlapped area and located on the moving channel 102, so that the detection area of the safety protection system 30 for the power conversion process can cover the inlet of the foreign matter entering the power conversion area 101 in a targeted manner, real-time detection of the inlet of the foreign matter entering the power conversion station 10 is realized, and accuracy of foreign matter intrusion detection is improved.

As an exemplary embodiment, the driving channel 103 includes a channel opening 1031 provided on at least one sidewall of both sides of the driving channel 103, and the power conversion process safety protection system 30 includes: sensors provided at both end portions of the passage opening 1031 in the traveling direction. The sensors are arranged towards the driving channel 103, and the sensors can form electronic fences on two sides of the moving channel 102 and the driving channel 103.

In this embodiment, the sensors are respectively installed at two ends of the channel opening 1031, and form an electronic fence towards the driving channel 103 to cover the entrance and exit of the driving channel 103, so that the entrance and exit of the power exchange area 101 or the moving channel 102 and the outside can be accurately covered, and accurate detection of personnel or objects invading through the driving channel 103 is realized.

As an exemplary embodiment, as shown in fig. 2a and 4, in the battery-charging compartment 104 of the battery-charging station 10 located at one side of the battery-charging area 101, a passage opening 1031 may be formed in the driving passage 103 and located at one side wall of the battery-charging compartment 104, and sensors facing the other side wall of the driving passage 103 may be provided at the ends where the passage opening 1031 meets the moving passage 102 of the battery-charging cart 20, respectively, so as to form an electronic fence at both sides of the moving passage 102.

As another alternative embodiment, as shown in fig. 2b and fig. 4, in the power exchange station 10 where the battery charging bins 104 are located at two sides of the power exchange area 101, since the power exchange trolley 20 is moved in and out at two sides of the power exchange area 101, it is necessary to provide the passage openings 1031 for the power exchange trolley 20 to move in and out on two side walls where the traveling passage 103 intersects with the moving passage 102. Illustratively, the passage openings 1031 provided on the side walls on both sides of the traffic passage 103 serve as the first opening 10311 and the second opening 10312, respectively.

As a possible implementation, the sensor may include a grating sensor, which may be disposed at both ends of the first opening 10311 and the second opening 10312, so that the same ends of the first opening 10311 and the second opening 10312 respectively form the electronic fence, thereby covering the area of the moving channel 102 within the driving channel 103.

Illustratively, the grating sensor includes a first transmitting end 31 and a first receiving end 32 that are mated to each other. The first emitting end 31 emits light, and the first receiving end 32 receives light, so that a grating electronic fence formed by light is formed between the first emitting end 31 and the first receiving end 32.

Referring to fig. 4, the grating sensor includes a first transmitting end 31 disposed at one end of the first opening 10311 and a first receiving end 32 disposed on the second opening 10312 and at the same end as the first opening 10311, and the first transmitting end 31 cooperates with the first receiving end 32 to form a first grating harness 33 and a second grating harness 34 at the same end of the first opening 10311 and the second opening 10312, respectively.

As an exemplary embodiment, the first and second openings 10311 and 10312 respectively have two opposite ends, wherein the same ends are located at the same side of the moving channel 102, and in this embodiment, two grating sensors may be employed, wherein the first transmitting end 31 and the first receiving end 32 of one grating sensor are respectively located at the same ends of the first and second openings 10311 and 10312 at one side of the moving channel 102 to form the first grating beam 33 covering the area of the moving channel 102 located in the driving channel 103 at one side of the moving channel 102; the first transmitting end 31 and the first receiving end 32 of the other grating sensor are respectively disposed at the same ends of the first opening 10311 and the second opening 10312 at the other side of the moving channel 102 to form a second grating beam 34 covering the area of the moving channel 102 located in the driving channel 103 at the other side of the moving channel 102.

In this embodiment, when the battery pack of the battery replacement vehicle is replaced by the battery replacement trolley 20, if an object passes through the first grating harness 33 or the second grating harness 34 at this time, the first grating harness 33 or the second grating harness 34 will be shielded first, the corresponding grating sensor is triggered, and then the battery replacement trolley 20 is triggered to stop working immediately, and stay at the current position, so that personnel can be prevented from entering the battery replacement area 101 during the battery replacement process, or other movable foreign matters can enter the battery replacement area 101, interference is caused to the battery replacement work, and even damage to equipment in the battery replacement station 10 occurs.

It should be understood that, in the embodiment of the present application, the positional relationship of the first and second non-expressed openings in the first and second openings 10311 and 10312 is merely descriptive of a certain opening; for example, in one embodiment, the first and second may be divisions according to a positional relationship, in one embodiment, the first and second may be divisions according to types, in another embodiment, the first and second may be divisions according to orientations, and the like.

As another alternative embodiment, the sensor may further include a reflective photoelectric sensor including a second transmitting end and a second receiving end, where the second transmitting end and the second receiving end of the same reflective photoelectric sensor are disposed on each of the two ends of the channel opening 1031, and an angle between a light emitting direction of the second transmitting end and a moving direction of the electricity changing cart 20 is smaller than a preset angle (not shown in the drawing).

In this embodiment, the second transmitting end and the second receiving end are integrated into a single body or are the same device, or may be separately provided. The second transmitting end and the second receiving end of the same reflective photoelectric sensor are disposed on each of the two end portions of the channel opening 1031, and an included angle between a light ray transmitting direction of the second transmitting end and a moving direction of the electricity changing trolley 20 is smaller than a preset included angle.

In the arrangement mode, the electronic fence can be formed at each end part through the second transmitting end and the second receiving end of the reflective photoelectric sensor; and, the included angle between the light emitting direction of the second emitting end and the moving direction of the battery changing trolley 20 is smaller than a preset included angle, and the preset included angle may be 0 ° to 10 °, as an alternative embodiment, the preset included angle may be 0 °, and when the preset included angle is 0 °, the light emitting direction is completely parallel to the moving direction of the battery changing trolley 20. Of course, in some embodiments, the predetermined included angle may be any angle other than zero, and the light emitting direction of the second emitting end may be toward the driving channel 103. The light emission direction of the second emission end is offset by a certain angle towards the driving channel 103 and away from the moving channel 102, for example, may be offset by 3 °, 5 °, 10 °, and the like, which is not limited in this embodiment.

As an alternative embodiment, the second emitting end of the reflective photoelectric sensor emits light, and in the absence of intrusion, the light may be reflected to the second receiving end through the other side of the moving channel 102. When invasion occurs, the reflection distance or angle of the electronic fence changes, so that the electronic fence invasion detection is realized.

As an alternative embodiment, the second emitting end of the reflective photosensor emits light, which may be non-reflective without intrusion. When invasion occurs, reflected light rays enter the second receiving end, and then electronic fence invasion detection is achieved.

Wherein the reflective photoelectric sensor may comprise a lidar sensor and/or an infrared sensor.

In some embodiments, as shown in fig. 5, the battery pack 41 is locked under the beam of the heavy truck 40, where there is a gap between the battery pack 41 and both the front wheel 43 of the heavy truck 40 and the rear wheel 42 of the heavy truck 40, and after the vehicle is parked in place, the first grating harness 33 may pass through the gap between the battery pack and the rear wheel 42 of the heavy truck 40, and the second grating harness 34 may pass through the gap between the battery pack and the front wheel 43 of the heavy truck 40. Thus, after the vehicle is in place, the vehicle does not trigger the first and second grating strands 33, 34. The first grating harness 33 and the second grating harness 34 can be prevented from being triggered by the replacement vehicle by mistake, and the intrusion detection function of the first grating harness 33 and the second grating harness 34 can be ensured to normally operate in the replacement process.

As an alternative embodiment, the heavy truck 40 may have one or more sets of front wheels 43, as may the heavy truck 40 also have one or more sets of rear wheels 42, one set of front wheels 43 and two sets of rear wheels 42 being shown by way of example in fig. 5. A heavy truck vehicle having other numbers of front wheels 43 and rear wheels 42, after the vehicle is parked in place, the first raster harness 33 may pass through the void between the battery pack and the rear wheels 42 of the heavy truck vehicle 40, and the second raster harness 34 may pass through the void between the battery pack and the front wheels 43 of the heavy truck vehicle 40, as is applicable to this embodiment.

As an exemplary embodiment, in order to ensure that the vehicle can be parked in place after entering the station, and avoid the situation that the vehicle is not stopped in place or the vehicle body angle is deviated, so that the first grating harness 33 and the second grating harness 34 are blocked by the vehicle for replacing, and false triggering is caused, in this embodiment, the vehicle detection device may be further provided to detect that the vehicle enters the power-replacing area 101 or exits the power-replacing area 101 and whether the vehicle is parked in place.

As an exemplary embodiment, the vehicle detection device may detect using a proximity sensor or a visual detection device, and as an exemplary embodiment, the vehicle detection device may be installed at the entrance and/or exit of the driving lane 103. Taking a proximity sensor as an example, a photoelectric sensor, a laser radar or the like may be used to detect a specific position of the battery-powered vehicle, and the proximity sensor may be installed at an entrance and/or an exit of the driving channel 103 and face a station entering direction of the battery-powered vehicle, so as to detect an in-place condition of the battery-powered vehicle by detecting a distance between the battery-powered vehicle and the proximity sensor.

In some embodiments, a visual detection device may be further used, for example, a camera is installed at the entrance and/or the exit of the driving channel 103, and video or image information of the battery-powered vehicle is collected and image processed, so as to determine the position of the battery-powered vehicle.

In other embodiments, the vehicle detection device may further multiplex a sensor forming an electronic fence, for example, a grating sensor, and the vehicle detection device may multiplex a grating sensor, detect a parking position of the vehicle through a triggering condition of the first grating beam 33 and the second grating beam 34, and characterize that the vehicle is stopped in place when the first grating beam 33 and the second grating beam 34 are both in an un-triggered state. Under the condition that any one of the first grating harness 33 and the second grating harness 34 is in a triggering state, the vehicle is represented not to be stopped in place, so that after the vehicle enters the station, the vehicle in-place condition can be detected through the triggering condition of the first grating harness 33 and the second grating harness 34, the detection of information such as the parking position and the parking angle of the battery changing vehicle is realized, the situation that the battery changing vehicle 20 collides with the battery changing vehicle when the battery changing is executed due to the overlarge or the out-of-place parking of the vehicle body is avoided, the battery changing vehicle 20, the battery pack, the battery changing vehicle and the like are damaged, and the reliability of the battery changing process is further improved.

In this embodiment, after the vehicle is parked, the first grating harness 33 passes through the battery pack and the rear wheels of the heavy truck, and the second grating harness 34 passes through the battery pack and the front wheels of the heavy truck to indicate that the vehicle is parked. Further, after the replacement vehicle is parked, the replacement vehicle battery pack is located in the replacement area 101, indicating that the vehicle is parked.

As an exemplary embodiment, the height of the electronic fence covers at least the height range of the battery change cart 20.

In this embodiment, for the situation that the parking angle of the battery-changing vehicle deviates, so that some parts of the vehicle body of the battery-changing vehicle are located above the coverage area of the first grating harness 33 or the second grating harness 34, or some parts of the vehicle body which are higher than the coverage area of the first grating harness 33 or the second grating harness 34 extend into the moving channel 102, if the coverage area of the first grating harness 33 or the second grating harness 34 exceeds the height of the battery-changing trolley 20, the situation that the contact area of the battery-changing trolley 20 is actually invaded and cannot be detected occurs, therefore, the height of the electronic fence at least covers the height area of the battery-changing trolley 20, the contact area of the battery-changing trolley 20 can be covered in an omnibearing manner, and the safety in the battery-changing process is improved.

As an exemplary embodiment, in the case of an intrusion of an electronic fence, the power change cart 20 needs to be controlled to stop running in order to ensure safety, so in this embodiment, the power change process safety protection system 30 may further include: and the safety loop is respectively and electrically connected with the sensor and the power changing trolley 20, and after the electronic fence is invaded, the sensor is triggered, so that the safety loop is triggered to control the power changing trolley 20 to stop. After the intrusion disappears, the safety loop control battery change cart 20 can be triggered to restart operation.

Fig. 6 is a schematic diagram of an alternative safety circuit according to an embodiment of the present application, taking a grating sensor as an example, and as shown in fig. 6, the safety circuit includes a control switch 501 connected in series between a power source and the power exchange cart 20, and a control end of the control switch 501 is connected to an output end of the sensor.

In this embodiment, if the grating sensor is triggered along the electronic fence formed on two sides of the moving channel 102, the output end of the grating sensor communicates a trigger signal to the control end of the control switch; after receiving the control signal, the control end controls the enabling end to disconnect the power supply and the power changing trolley 20 so as to control the power changing trolley 20 to stop battery replacement or movement.

In general, the power supply of the power conversion trolley 20 is often strong current, for example 220V or 380V, and the output of the grating sensor is often weak current, so as to realize control of the power conversion trolley 20, in this embodiment, the control switch may include a relay on the weak current side and an electromagnetic contactor with strong current, and an exemplary trigger signal of the grating sensor controls the relay to act, and then the relay controls the electromagnetic contactor to act, and the electromagnetic contactor realizes on-off between the power conversion trolley 20 and the power supply.

Fig. 7 is a schematic diagram of electrical connection of an alternative safety circuit according to an embodiment of the present application, M is a motor of the power conversion trolley 20, and the electromagnetic contactors K3 and K4 control connection of the motor M of the power conversion trolley 20 and a strong electric power source through electromagnetic coils.

In the present embodiment, the normally-closed contact of the electromagnetic contactor K3 is kept in an on state when the grating sensor is shielded from foreign matter, and the EDM circuit is turned on. The first internal contact and the second internal contact of the relay are closed, the first coil K3 'of the electromagnetic contactor K3 and the second coil K4' of the electromagnetic contactor K4 are electrified, the main contacts of the electromagnetic contactors K3 and K4 are closed, and the three-phase motor starts to operate.

When the foreign matter shields the grating sensor, the first internal contact and the second internal contact are disconnected, the first coil K3 'of the electromagnetic contactor K3, the second coil K4' of the electromagnetic contactor K4 are powered off, the main contacts of the electromagnetic contactors K3 and K4 are disconnected, and the three-phase motor is powered off and stopped. And further, under the condition of invading the trolley moving channel 102, the motor of the power-changing trolley 20 can be disconnected in time, so that the power-changing trolley 20 stops running. The safety of personnel or equipment in the power exchange process is ensured.

As an exemplary embodiment, further comprising: the controller is connected with the sensor and is used for receiving a trigger signal that the battery change vehicle enters the battery change area 101 or exits the battery change area 101 and outputting a disabling signal to the sensor; upon receiving a trigger signal that the battery change vehicle reaches the battery change region 101, an enable signal is output to the sensor.

In this embodiment, in order to avoid the problem of false alarm caused by triggering the grating sensor when the electric vehicle enters the electric conversion area 101 or exits the electric conversion area 101, the controller receives a trigger signal that the electric vehicle enters the electric conversion area 101 or exits the electric conversion area 101, and outputs a disabling signal to the grating sensor to control the grating sensor to stop working; when receiving the trigger signal that the power change vehicle reaches the power change area 101, an enabling signal is output to the sensor to control the grating sensor to start working.

As an exemplary embodiment, the trigger signal of the electric vehicle entering the electric power exchanging area 101 or exiting the electric power exchanging area 101 may be collected by a vehicle detection device, and in this embodiment, the vehicle detection device may be further connected to a controller, installed toward the driving channel 103, for detecting that the electric vehicle enters the electric power exchanging area 101 or exits the electric power exchanging area 101, and that the electric vehicle reaches the electric power exchanging area 101 and outputs a corresponding trigger signal to the controller.

As an exemplary embodiment, when the vehicle detection device detects that the battery-changing vehicle starts to enter the battery-changing area 101 or exits the battery-changing area 101, a trigger signal for entering or exiting the battery-changing area is output to the controller, and the controller controls the sensor to be disabled based on the trigger signal so as to shield the electronic fence, and the battery-changing vehicle cannot trigger the electronic fence in the process of entering or exiting the battery-changing area, so that false alarm or false protection is caused. After the vehicle detection device is in place, an in-place trigger signal is output to the controller, the controller further controls the sensor to enable, and the electronic fence shields the contact, so that the intrusion detection function is restored.

In this embodiment, reference may be made to the description of the vehicle detection device in the above embodiment for detecting that the vehicle enters, exits or is in place, and the description is not repeated in this embodiment.

According to another aspect of an embodiment of the present application, a power exchange station is provided, comprising a power exchange process safety protection system as defined in any one of the above.

As an exemplary embodiment, the power station may include a power station with battery charging bins located on one side of the driving tunnel, or may include a power station with battery charging bins located on both sides of the driving tunnel. The safety protection system for the power exchange process is installed in the power exchange station, so that safety protection in the power exchange process is realized, and the specific installation mode can be seen from the description of the safety protection system for the power exchange process in the embodiment.

According to another aspect of the embodiment of the present application, there is further provided a safety protection control method for a power exchange process, as shown in fig. 1, where a power exchange trolley 20 for performing battery exchange on a power exchange vehicle and a power exchange area 101 for parking the power exchange vehicle are disposed in the power exchange station, the power exchange area 101 is disposed in a driving channel 103 of the power exchange station along a driving direction of the power exchange vehicle, and the power exchange trolley 20 can move back and forth relative to the power exchange area 101, and further includes: the power conversion process safety protection system 30 is disposed at two sides of a moving channel 102 of the power conversion trolley 20 along a moving direction of the power conversion trolley 20, and fig. 8 is a schematic flow diagram of a power conversion process safety protection control method according to an embodiment of the present application, as shown in fig. 8, where the control method includes:

s10, acquiring an intrusion trigger signal output by a safety protection system in the power change process.

And S20, when the trigger signal is a trigger signal that the moving channel of the power changing trolley is invaded, controlling the power changing trolley to stop running.

In this embodiment, after the battery-changing vehicle enters the battery-changing station, the battery-changing vehicle travels along the driving channel 103 and is parked after traveling to the battery-changing area 101; after the battery changing vehicle is parked to the battery changing area 101, the battery changing trolley 20 moves back and forth relative to the battery changing area 101 along the moving channel 102, and the battery of the battery changing vehicle is changed; the power-change process safety protection system 30 is disposed on two sides of the moving channel 102 of the power-change trolley 20 along the moving direction of the power-change trolley 20, the power-change trolley 20 does not trigger the power-change process safety protection system 30 when the moving channel 102 moves, and when personnel and/or objects shuttle in the power-change station, the personnel and/or objects will first pass through the position where the power-change process safety protection system 30 is disposed when entering the moving channel 102, at this time, the personnel and/or objects trigger the power-change process safety protection system 30, and the power-change process safety protection system 30 outputs a trigger signal that the moving channel 102 of the power-change trolley 20 is invaded; when the trigger signal is a trigger signal that the moving channel 102 of the power changing trolley 20 is invaded, the power changing trolley 20 is controlled to stop running.

When the power exchange process is protected, if the power exchange trolley is frequently started and stopped, the power exchange efficiency can be possibly affected, so that the power exchange trolley can be classified and controlled based on intrusion events while the effective safety protection of the power exchange process is ensured.

As an exemplary embodiment, upon confirming receipt of the intrusion trigger signal, the trigger type, i.e., the intrusion type, may be determined based on the intrusion trigger signal. And when the trigger type is a personnel intrusion trigger signal and the personnel intrusion trigger signal continuously reaches a first preset duration, controlling the power-changing trolley to stop running.

For example, if a person intrusion is detected, there may be several situations, one of which is that a person enters the moving aisle; secondly, the person can touch the mobile channel by mistake due to the movement of the person nearby the mobile channel. Aiming at the first condition, the power-changing trolley can be immediately controlled to stop running. Aiming at the second condition, the personnel can touch by mistake only in a short time and can not enter the moving channel, so that the warning can be directly output to carry out, the warning is carried out, the personnel can pay attention to safety, and the power change trolley is not required to be controlled to stop running, so that the power change efficiency is ensured.

For example, when a person intrusion is detected, the duration of the intrusion trigger signal may be detected, and if the duration is shorter, that is, the preset duration is not reached, a person false touch may be represented, and a warning signal may be output. If the duration of the intrusion trigger signal reaches the preset duration, personnel intrusion is represented, and the power change trolley is controlled to stop running.

As an alternative embodiment, in order to ensure personnel safety as much as possible, in case of personnel intrusion, the operation state of the battery changing trolley is combined to determine whether the operation needs to be stopped.

When the battery charging bin of the battery replacement trolley is just driven out, the battery charging bin of the battery replacement trolley is required to be driven to a battery replacement area for a certain period of time, at the moment, if personnel invasion or false touch occurs, a warning signal can be output first, and in a period of time, invasion is not eliminated, the battery replacement trolley is controlled to stop running.

Specifically, when the trigger type is a human intrusion trigger signal, detecting that the power-changing trolley reaches the residual duration of the power-changing area. As an exemplary embodiment, the time period for the battery changing trolley to move from the battery charging bin to the battery changing area is often fixed, so the remaining time period for the battery changing trolley to reach the battery changing area can be calculated based on the time period between the battery changing trolley driving out of the battery charging bin and the acquisition of the personnel intrusion trigger signal. And outputting a warning signal if the remaining time length is longer than a second preset time length. The second preset duration may be a human-reflected duration, or may be another preset duration, for example, 1s,2s, etc. And outputting a warning signal if the remaining time can ensure the time for the personnel to evacuate the electronic fence. And if the residual time length is smaller than the second preset time length, namely, the residual time length cannot ensure that the time length of the personnel evacuating the electronic fence controls the power changing trolley to stop running. Under the condition of ensuring personnel safety, the influence on the electricity exchanging efficiency can be reduced as much as possible.

As an exemplary embodiment, after the warning signal is output, if the personnel intrusion trigger signal is not eliminated within the third preset time period, the power changing trolley is controlled to stop running. So as to ensure personnel safety as much as possible. As an exemplary embodiment, when detecting the trigger type of the trigger signal, the detection may be based on dynamic information when the electronic fence is triggered. Since a person and an object are involved in intrusion, their trigger types are different. For example, when a person invades, the person may first enter a certain body part, such as an arm, a leg or a head, and the invasion range of the part in the vertical direction is not always from the ground, and may cover some parts in the air, for example, a grating sensor may cover only one or several light rays in the air of the grating sensor; while the intrusion range of the object in the vertical direction is from the ground to the air. The personnel intrusion may be intermittent or the light triggered may be constantly in a changing state, especially if the light is triggered by mistake, the personnel may enter the light coverage unintentionally and leave the light coverage unintentionally. While intrusion of objects may be persistent.

Based on the trigger dynamic information, which comprises trigger area information or trigger duration state information of the electronic fence, of the electronic fence can be acquired when the trigger type is detected; the trigger type is determined based on the trigger dynamic information. As an exemplary embodiment, the triggering dynamic information may include dynamic information of a triggering range of the electronic fence, and may include continuous state information of the triggered electronic fence, and as an exemplary embodiment, when the triggering range of the electronic fence is fat dynamic or the sequence of the triggered ranges accords with human intrusion characteristics, or the continuous state information of the triggered electronic fence is intermittent triggering, the current triggering type is represented as a human intrusion triggering signal, and if the triggering range of the electronic fence is static, or the continuous state information of the triggered electronic fence is continuous triggering, the object intrusion is represented.

As an optional embodiment, the triggering type may further include a vehicle-changing in-out trigger, and in this embodiment, the vehicle-changing in-out trigger may be used to detect that the vehicle-changing in-out is in-place, out of the station, and stop in place, for example, if the vehicle-changing area is not parked with the vehicle-changing, when the electronic fences on two sides of the moving channel along the driving direction are sequentially triggered, it is determined that the vehicle-changing enters the vehicle-changing area until the electronic fences on two sides of the moving channel are in an un-triggered state, and it is determined that the vehicle-changing area is reached by the vehicle-changing.

In this embodiment, for detection of the battery-changing vehicle not parked in the battery-changing area, the vehicle detection device may be used to detect that the battery-changing vehicle is not parked, and when it is confirmed that the electronic fences on both sides of the moving channel along the driving direction are triggered in sequence, the battery-changing vehicle is represented to enter the battery-changing station, and after the battery-changing vehicle is parked in place, the electronic fences on both sides of the moving channel pass through the battery pack and the rear wheel of the battery-changing vehicle and pass through the battery pack and the front wheel of the battery-changing vehicle. Therefore, after being triggered in sequence, the states of the vehicles reach to be in the non-triggered state, and the replacement vehicles are confirmed to be parked in place.

The embodiment of the application also provides electronic equipment which can be provided with at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform a power conversion process safety protection control method.

Alternatively, the electronic device may be disposed in the power exchange station, may be disposed on the power exchange trolley, or may be a device independent of the power exchange station and the power exchange trolley.

Fig. 9 is a block diagram of an alternative electronic device, according to an embodiment of the application, as shown in fig. 9, including a processor 902, a communication interface 904, a memory 906, and a communication bus 908, wherein the processor 902, the communication interface 904, and the memory 906 communicate with each other via the communication bus 908, wherein,

A memory 906 for storing a computer program;

the processor 902 is configured to execute the computer program stored in the memory 906, and at least implement the following steps:

acquiring a trigger signal output by the safety protection system in the power conversion process;

And when the trigger signal is an intrusion trigger signal that the moving channel of the power changing trolley is intruded, controlling the power changing trolley to stop running.

Alternatively, in the present embodiment, the above-described communication bus may be a PCI (PERIPHERAL COMPONENT INTERCONNECT, peripheral component interconnect standard) bus, or an EISA (Extended Industry Standard Architecture ) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 9, but not only one bus or one type of bus.

The communication interface is used for communication between the electronic device and other devices.

The memory may include RAM or may include non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

The processor may be a general purpose processor and may include, but is not limited to: CPU (Central Processing Unit ), NP (Network Processor, network processor), etc.; but may also be a DSP (DIGITAL SIGNAL Processing), ASIC (Application SPECIFIC INTEGRATED Circuit), FPGA (Field-Programmable gate array) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.

Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments, and this embodiment is not described herein.

It will be appreciated by those skilled in the art that the structure shown in fig. 9 is merely illustrative, and the apparatus for implementing the method according to any of the above embodiments may be a terminal apparatus. Fig. 9 is not limited to the structure of the electronic device. For example, the terminal device may also include more or fewer components (e.g., network interfaces, display devices, etc.) than shown in fig. 9, or have a different configuration than shown in fig. 9.

Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program for instructing a terminal device related hardware, the program may be stored in a computer readable storage medium, and the storage medium may include: flash disk, ROM, RAM, magnetic or optical disk, etc.

The application can be realized by adopting or referring to the prior art at the places which are not described in the application.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims (13)

1. The utility model provides a trade electric process safety protection system, is applied to the power conversion station, be equipped with in the power conversion station and be used for supplying to trade the electric dolly that trades that the electric vehicle carried out battery replacement and trade the electric region that trades that the electric vehicle parks, trade the electric region and follow trade the direction of travel of electric vehicle and locate in the driving passageway of power conversion station, trade the electric dolly can be relative trade electric region round trip movement, its characterized in that, trade electric process safety protection system follows trade the direction of movement of electric dolly set up in trade the both sides of the moving passageway of electric dolly.

2. The power conversion process safety protection system according to claim 1, wherein the moving channel is arranged perpendicular to the driving channel, and the power conversion process safety protection system is arranged on two sides of an area of the moving channel, which is located in the driving channel.

3. The power conversion process safety protection system of claim 1, wherein the drive channel includes a channel opening disposed on at least one sidewall on both sides of the drive channel, the power conversion process safety protection system comprising:

And the sensors are arranged at two ends of the opening of the passage along the running direction, are arranged towards the running passage, and form electronic fences along two sides of the moving passage.

4. The power conversion process safety protection system according to claim 3, wherein the side walls on both sides of the driving channel are respectively provided with the channel openings as a first opening and a second opening;

the sensor comprises grating sensors arranged at two ends of the first opening and the second opening, so that the same ends of the first opening and the second opening respectively form the electronic fence, and the area of the moving channel in the driving channel is covered.

5. The power conversion process safety protection system of claim 4, wherein the grating sensor includes a first transmitting end disposed at an end of the first opening and a first receiving end disposed on the second opening and at the same end as the first opening, the first transmitting end and the first receiving end cooperating to form a first grating harness and a second grating harness at the same end of the first opening and the second opening, respectively.

6. The power conversion process safety protection system of claim 5, wherein the power conversion vehicle is a heavy-duty vehicle, the battery pack is locked under a beam of the heavy-duty vehicle, the first grating harness is passable through the battery pack and a rear wheel of the heavy-duty vehicle, and the second grating harness is passable through the battery pack and a front wheel of the heavy-duty vehicle.

7. A power conversion process safety protection system according to claim 3, wherein the sensor comprises a reflective photoelectric sensor comprising a second transmitting end and a second receiving end, the second transmitting end and the second receiving end of the same reflective photoelectric sensor are arranged on each of two ends of the passage opening, and an included angle between a light ray transmitting direction of the second transmitting end and a moving direction of the power conversion trolley is smaller than a preset included angle.

8. The power conversion process safety protection system according to any one of claims 4-7, wherein the height of the electronic fence covers at least a height range of the power conversion trolley.

9. The power conversion process safety protection system of claim 3, further comprising: and the safety loop is respectively and electrically connected with the sensor and the power changing trolley and controls the power changing trolley to stop or start under the triggering of the sensor.

10. The power conversion process safety protection system according to claim 9, wherein the safety loop comprises a control switch connected in series between a power source and the power conversion trolley, and wherein a control end of the control switch is connected to an output end of the sensor.

11. The power conversion process safety protection system of claim 3, further comprising:

The controller is connected with the sensor and is used for receiving an in/out trigger signal of the power change vehicle entering the power change area or exiting the power change area and outputting a disabling signal to the sensor; and outputting an enabling signal to the sensor when receiving an in-place trigger signal that the power change vehicle reaches the power change area.

12. The power conversion process safety protection system of claim 11, further comprising: and the vehicle detection device is connected with the controller, is installed towards the driving channel and is used for detecting that the electric vehicle enters the electric conversion area or exits the electric conversion area, and the electric vehicle reaches the electric conversion area and outputs an in/out trigger signal and an in-place trigger signal to the controller.

13. The power conversion process safety protection system of claim 12 wherein said vehicle detection means multiplexes said sensors.