Safety detection device and safety detection method for battery replacement area

Abstract

This disclosure provides a safety detection device and method for a battery swapping area. The device includes a scanning device, sensors, and a controller. The scanning device is positioned diagonally across the battery swapping lane, and the sensors are positioned along the travel path of the battery swapping vehicles. The sensors detect the current position of the battery swapping vehicles and transmit this position to the controller. The controller determines the state of the battery swapping lane based on the received current position and transmits this state to the scanning device. The scanning device acquires a target scanning area based on the received state of the battery swapping lane and scans the target scanning area to detect any obstructions unrelated to the battery swapping vehicles. This disclosure utilizes the cooperation between the sensors, controller, and scanning device to detect obstructions unrelated to the battery swapping vehicles in the target scanning area of ​​the battery swapping lane, preventing such obstructions from accidentally entering the battery swapping lane and improving battery swapping safety.

Description

Technical Field

[0001] This disclosure relates to the field of safety detection technology, and in particular to a safety detection device and method for a battery swapping area. Background Technology

[0002] In recent years, with the development of smart battery swapping station networks, electric vehicles have shifted from charging to battery swapping. During the battery swapping process, the vehicle needs to enter the swapping lane and park in the designated swapping area. The swapping equipment then removes the old battery from the electric vehicle and passes it to a palletizer. The palletizer places the old battery into the old battery compartment of the charging chamber, then retrieves a new battery from the new battery compartment and passes it to the swapping equipment, which installs it onto the electric vehicle. This means that the entire swapping process involves the movement of both the electric vehicle and the swapping equipment. If personnel or other objects unrelated to the swapping process enter the swapping area, there is a risk that the movement of the swapping equipment may accidentally injure personnel or other objects unrelated to the swapping process.

[0003] Currently, it is impossible to detect situations where personnel or other moving objects unrelated to battery swapping enter the battery swapping area during the vehicle battery swapping process. Summary of the Invention

[0004] The technical problem to be solved by this disclosure is to overcome the shortcomings of existing technology in that it cannot detect the entry of personnel or other moving objects unrelated to battery swapping into the battery swapping area during the vehicle battery swapping process, and to provide a safety detection device and safety detection method for the battery swapping area.

[0005] This disclosure solves the above-mentioned technical problems through the following technical solution:

[0006] This disclosure provides a safety detection device for a battery swapping area, which is applied in a battery swapping station. The safety detection device includes a scanning device, a sensor, and a controller. The scanning device is set at a diagonal position in the battery swapping channel, and the sensor is set on the travel route of the battery swapping vehicle.

[0007] The sensor is used to detect the current location of the battery swapping vehicle and transmit the current location to the controller;

[0008] The controller is used to determine the status of the battery swapping channel based on the received current location, and transmit the status of the battery swapping channel to the scanning device;

[0009] The scanning device is used to obtain a target scanning area based on the received status of the battery swapping channel, and to scan the target scanning area to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area.

[0010] In this embodiment, the cooperation between sensors, controllers and scanning devices is used to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area of ​​the battery swapping channel, so as to prevent obstructions unrelated to the battery swapping vehicle from accidentally entering the battery swapping channel and improve the safety of battery swapping.

[0011] Preferably, the number of sensors is multiple; including at least one first sensor disposed at the entrance of the battery swapping channel; at least one second sensor disposed within the battery swapping channel; and at least one third sensor disposed at the exit of the battery swapping channel.

[0012] In this embodiment, the status of the battery swapping vehicle can be accurately detected by the first sensor, the second sensor and the third sensor, so that the target scanning area can be accurately switched to the corresponding area.

[0013] Preferably, the first sensor is located on one side of the battery swapping channel along a first direction in which the battery swapping vehicle enters and exits the channel, and the first sensor is capable of detecting a region in a second direction perpendicular to the first direction; the second sensor is located on one side of the battery swapping channel along the first direction in which the battery swapping vehicle enters and exits the channel, and the second sensor is capable of detecting a region in a second direction perpendicular to the first direction; the third sensor is located on one side of the battery swapping channel along the first direction in which the battery swapping vehicle enters and exits the channel, and the third sensor is capable of detecting a region in a second direction perpendicular to the first direction.

[0014] In this embodiment, by setting the first, second, and third sensors at preset positions and detecting the area in the second direction, the position status of the battery swapping vehicle can be accurately detected, enabling the target scanning area to be precisely switched to the corresponding area.

[0015] Preferably, the first sensor is a single sensor, which covers a first preset distance in a first direction; and / or, the second sensor is a single sensor, which covers a second preset distance in a first direction; and / or, the third sensor is a single sensor, which covers a third preset distance in a first direction.

[0016] In this embodiment, detection is achieved by using the first sensor, the second sensor, and the third sensor within the area in the second direction and within a preset distance range in the first direction. This enables comprehensive detection, avoids erroneous detections caused by staff passing through, greatly improves the reliability of detecting the position status of the battery swapping vehicle, and allows the target scanning area to be accurately switched to the corresponding area.

[0017] Preferably, when there is only one first sensor, one second sensor, and one third sensor, all of the first sensor, the second sensor, and the third sensor are grating sensors.

[0018] In this embodiment, comprehensive detection is achieved by setting the first sensor, the second sensor, and the third sensor as grating sensors to ensure the accuracy of detecting the position status of the battery swapping vehicle, so that the target scanning area can be accurately switched to the corresponding area.

[0019] Preferably, there are two first sensors, and the distance between the two first sensors in the first direction is a first preset distance; and / or, there are two second sensors, and the distance between the two second sensors in the first direction is a second preset distance; and / or, there are two third sensors, and the distance between the two third sensors in the first direction is a third preset distance.

[0020] In this embodiment, different distances are set between the two first sensors, the two second sensors, and the two third sensors to achieve full-range detection, thereby ensuring the accuracy of the position status detection of the battery swapping vehicle.

[0021] Preferably, when there are two of each of the first sensor, the second sensor, and the third sensor, all of them are photoelectric sensors.

[0022] In this embodiment, by setting the two first sensors, two second sensors, and two third sensors as photoelectric sensors, the location status of the battery swapping vehicle can be detected more accurately while reducing equipment costs.

[0023] Preferably, if the first sensor, the second sensor, and the third sensor do not detect the battery swapping vehicle, then the state of the battery swapping channel is determined to be a vehicle-free state, and the target scanning area is the first area.

[0024] In this embodiment, if no battery swapping vehicle is detected by the first sensor, the second sensor, and the third sensor, it indicates that the battery swapping vehicle is not in the battery swapping channel. This determines that the battery swapping channel is in a vehicle-free state. At this time, the target scanning area is the first area before the battery swapping vehicle enters the battery swapping channel or after it leaves the battery swapping channel.

[0025] Preferably, if the first sensor detects the battery swapping vehicle, but the second and third sensors do not detect the battery swapping vehicle, then the state of the battery swapping channel is determined to be the vehicle entry state, and the target scanning area is switched from the first area to the second area.

[0026] In this embodiment, if the first sensor detects a battery-swapping vehicle but the second and third sensors do not, it indicates that the battery-swapping vehicle is entering the battery-swapping channel. This determines the state of the battery-swapping channel as the vehicle-entry state, and the target scanning area is switched from the first area to the second area when the battery-swapping vehicle enters the battery-swapping channel.

[0027] Preferably, if the second sensor detects the battery swapping vehicle, but the first sensor and the third sensor do not detect the battery swapping vehicle, then the state of the battery swapping channel is determined to be the battery swapping state, and the target scanning area is switched from the second area to the third area.

[0028] In this embodiment, if the second sensor detects the battery swapping vehicle but the first and third sensors do not, it indicates that the battery swapping vehicle has entered the battery swapping area within the battery swapping channel. This determines the state of the battery swapping channel as the battery swapping state, and the target scanning area is switched from the second area to the third area where the battery swapping vehicle is in the battery swapping process.

[0029] Preferably, if the third sensor detects the battery-swapping vehicle, but the first and second sensors do not detect the battery-swapping vehicle, then the state of the battery-swapping channel is determined to be the vehicle departure state, and the target scanning area is switched from the third area to the fourth area.

[0030] In this embodiment, if the third sensor detects a battery-swapping vehicle but the first and second sensors do not, it indicates that the battery-swapping vehicle is leaving the battery-swapping channel. This determines the state of the battery-swapping channel as the vehicle leaving the channel, and the target scanning area is switched from the third area to the fourth area when the battery-swapping vehicle leaves the battery-swapping channel.

[0031] Preferably, the scanning device includes a laser scanner;

[0032] And / or,

[0033] The scanning device is also used to output an alarm message when it detects an obstruction unrelated to the battery swapping vehicle in the target scanning area.

[0034] In this embodiment, when the scanning device detects an obstruction unrelated to the battery swapping vehicle in the target scanning area, it outputs an alarm message to prevent such obstructions from accidentally entering the battery swapping channel.

[0035] Preferably, the installation height of the sensor and / or scanning device is not less than the sum of the heights of the battery swapping equipment and the battery pack of the battery swapping vehicle within the battery swapping station.

[0036] Preferably, if the battery swapping channel is in a closed state, the scanning device is set at a diagonal position in the battery swapping channel;

[0037] If the battery swapping channel is not closed, the scanning device will be set within a preset range of the front and rear of the vehicle when the battery swapping vehicle is in the battery swapping state.

[0038] In this embodiment, the scanning device is set in different positions according to the state of the battery swapping channel, which enables a clearer and more complete scan of the corresponding area.

[0039] This disclosure provides a safety detection method for a battery swapping area. The safety detection method is applicable to the safety detection device for the battery swapping area described in any of the above-mentioned embodiments. The safety detection device includes a scanning device, a sensor, and a controller. The safety detection method includes:

[0040] The sensor detects the current location of the battery swapping vehicle and transmits the current location to the controller.

[0041] The controller determines the status of the battery swapping channel based on the received current location and transmits the status of the battery swapping channel to the scanning device.

[0042] The scanning device obtains the target scanning area based on the received status of the battery swapping channel, and scans the target scanning area to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area.

[0043] In this embodiment, the cooperation between sensors, controllers and scanning devices is used to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area of ​​the battery swapping channel, so as to prevent obstructions unrelated to the battery swapping vehicle from accidentally entering the battery swapping channel and improve the safety of battery swapping.

[0044] Preferably, the number of sensors is multiple; including at least one first sensor disposed at the entrance of the battery swapping channel; at least one second sensor disposed within the battery swapping channel; and at least one third sensor disposed at the exit of the battery swapping channel. The safety detection method further includes:

[0045] If none of the first sensor, the second sensor, or the third sensor detects the battery swapping vehicle, then the battery swapping channel is determined to be in a vehicle-free state, and the target scanning area is the first area.

[0046] In this embodiment, when no battery-swapping vehicle is detected by the first sensor, the second sensor, and the third sensor, the state of the battery-swapping channel is determined to be a vehicle-free state. At this time, the target scanning area is the first area before the battery-swapping vehicle enters the battery-swapping channel or after it leaves the battery-swapping channel.

[0047] Preferably, the security detection method further includes:

[0048] If the first sensor detects the battery-swapping vehicle, but the second and third sensors do not, then the battery-swapping channel is determined to be in the vehicle entry state, and the target scanning area is switched from the first area to the second area.

[0049] In this embodiment, if the first sensor detects a battery-swapping vehicle, but the second and third sensors do not, the state of the battery-swapping channel is determined to be the vehicle entry state, and the target scanning area is switched from the first area to the second area when the battery-swapping vehicle enters the battery-swapping channel.

[0050] Preferably, the security detection method further includes:

[0051] If the second sensor detects the battery-swapping vehicle, but the first and third sensors do not, then the battery-swapping channel is determined to be in a battery-swapping state, and the target scanning area is switched from the second area to the third area.

[0052] In this embodiment, if the second sensor detects a battery-swapping vehicle while the first and third sensors do not, the state of the battery-swapping channel is determined to be a battery-swapping state, and the target scanning area is switched from the second area to the third area where the battery-swapping vehicle is in the battery-swapping process.

[0053] Preferably, the security detection method further includes:

[0054] If the third sensor detects the battery-swapping vehicle, but the first and second sensors do not, then the battery-swapping channel is determined to be in a vehicle-departure state, and the target scanning area is switched from the third area to the fourth area.

[0055] In this embodiment, if the third sensor detects a battery-swapping vehicle while the first and second sensors do not, the state of the battery-swapping channel is determined to be the exit state, and the target scanning area is switched from the third area to the fourth area when the battery-swapping vehicle leaves the battery-swapping channel.

[0056] Preferably, the security detection method further includes:

[0057] When the scanning device detects an obstruction unrelated to the battery swapping vehicle in the target scanning area, it outputs an alarm message.

[0058] In this embodiment, when the scanning device detects an obstruction unrelated to the battery swapping vehicle in the target scanning area, it outputs an alarm message to prevent such obstructions from accidentally entering the battery swapping channel.

[0059] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this disclosure.

[0060] The positive and progressive effects of this disclosure are as follows:

[0061] This disclosure utilizes the cooperation between sensors, controllers, and scanning devices to detect whether there are obstructions unrelated to the battery swapping vehicle in the target scanning area of ​​the battery swapping channel, thereby preventing such obstructions from accidentally entering the battery swapping channel and improving battery swapping safety. Attached Figure Description

[0062] Figure 1 This is a schematic diagram of the dimensions of a battery swapping station for the safety detection device in the battery swapping area according to embodiments 1 and 2 of this disclosure.

[0063] Figure 2 This is a schematic diagram of the structure of the safety detection device for the battery swapping area in Embodiment 1 of this disclosure.

[0064] Figure 3 This is a schematic diagram of the scanning area of ​​the scanning device of the safety detection device for the battery swapping area in Embodiments 1 and 2 of this disclosure.

[0065] Figure 4 This is a flowchart of the safety detection method for the battery swapping area in Embodiment 2 of this disclosure. Detailed Implementation

[0066] The present disclosure will be described more clearly and completely below by way of embodiments and in conjunction with the accompanying drawings. The description of the embodiments is intended to help understand the present disclosure, but does not constitute a limitation of the present disclosure.

[0067] Example 1

[0068] This embodiment provides a safety detection device for a battery swapping area, which is applied in a battery swapping station. The safety detection device includes a scanning device, a sensor, and a controller. The scanning device is set at the diagonal of the battery swapping channel, and the sensor is set on the travel route of the battery swapping vehicle.

[0069] Sensors are used to detect the current location of the battery swapping vehicle and transmit the current location to the controller;

[0070] The controller is used to determine the status of the battery swapping channel based on the received current location and transmit the status of the battery swapping channel to the scanning device.

[0071] The scanning device is used to obtain the target scanning area based on the received status of the battery swapping channel, and to scan the target scanning area to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area.

[0072] In this embodiment, the dimensions of the battery swapping station are as follows: Figure 1 As shown, Figure 1The battery swapping station is equipped with B1 compartment, B2 compartment, front room, rear room, battery swapping channel, battery swapping area for battery swapping vehicles, and vehicle entry direction.

[0073] In this embodiment, the scanning device includes a laser scanner.

[0074] In this embodiment, the cooperation between sensors, controllers and scanning devices is used to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area of ​​the battery swapping channel, so as to prevent obstructions unrelated to the battery swapping vehicle from accidentally entering the battery swapping channel and improve the safety of battery swapping.

[0075] In an optional embodiment, the number of sensors is multiple; including at least one first sensor disposed at the entrance of the battery swapping channel; at least one second sensor disposed within the battery swapping channel; and at least one third sensor disposed at the exit of the battery swapping channel.

[0076] In this embodiment, the status of the battery swapping vehicle can be accurately detected by the first sensor, the second sensor and the third sensor, so that the target scanning area can be accurately switched to the corresponding area.

[0077] In an optional embodiment, a first sensor is located on one side of the battery swapping channel along a first direction in which the battery swapping vehicle enters or exits the channel, and the first sensor is capable of detecting a region in a second direction perpendicular to the first direction; a second sensor is located on one side of the battery swapping channel along the first direction in which the battery swapping vehicle enters or exits the channel, and the second sensor is capable of detecting a region in a second direction perpendicular to the first direction; a third sensor is located on one side of the battery swapping channel along the first direction in which the battery swapping vehicle enters or exits the channel, and the third sensor is capable of detecting a region in a second direction perpendicular to the first direction.

[0078] In this embodiment, by setting the first, second, and third sensors at preset positions and detecting the area in the second direction, the position status of the battery swapping vehicle can be accurately detected, enabling the target scanning area to be precisely switched to the corresponding area.

[0079] In an optional embodiment, there is one first sensor that covers a first preset distance in a first direction; and / or, there is one second sensor that covers a second preset distance in a first direction; and / or, there is one third sensor that covers a third preset distance in a first direction.

[0080] In this embodiment, the first, second, and third preset distances are all set according to actual conditions. For example, the first preset distance can be set to 250mm, the second preset distance can be set to 2095mm, and the third preset distance can be set to 250mm, or other values ​​can be used; no specific limitation is made here. This setting takes into account that battery swapping vehicles have a certain length. If the first, second, and third sensors are detecting the area in the second direction but do not cover a certain distance in the first direction, it is easy to cause misjudgment. For example, when someone enters the battery swapping lane, since there is only one first, second, and third sensor, if the first, second, and third sensors are detecting the area in the second direction but do not cover a certain distance in the first direction, it is easy to misjudge the person entering the battery swapping lane as a battery swapping vehicle, thus creating a safety hazard.

[0081] It should be noted that the first preset distance and the third preset distance can be set to the same value, or they can be set to different values ​​depending on the actual situation.

[0082] In this embodiment, detection is achieved by using the first sensor, the second sensor, and the third sensor within the area in the second direction and within a preset distance range in the first direction. This enables comprehensive detection, avoids erroneous detections caused by staff passing through, greatly improves the reliability of detecting the position status of the battery swapping vehicle, and allows the target scanning area to be accurately switched to the corresponding area.

[0083] In an optional embodiment, when there is only one first sensor, one second sensor, and one third sensor, all of the first, second, and third sensors are grating sensors.

[0084] In this embodiment, comprehensive detection is achieved by setting the first sensor, the second sensor, and the third sensor as grating sensors to ensure the accuracy of detecting the position status of the battery swapping vehicle, so that the target scanning area can be accurately switched to the corresponding area.

[0085] In an alternative embodiment, such as Figure 2 As shown, there are two first sensors (e.g., S1, S2), and the distance between the two first sensors in the first direction is a first preset distance; and / or, there are two second sensors (e.g., S3, S4), and the distance between the two second sensors in the first direction is a second preset distance; and / or, there are two third sensors (e.g., S5, S6), and the distance between the two third sensors in the first direction is a third preset distance.

[0086] In this embodiment, comprehensive detection is achieved by setting different distances between the two first sensors, the two second sensors, and the two third sensors, respectively, so as to ensure the accuracy of the position status detection of the battery swapping vehicle.

[0087] In an optional embodiment, when there are two of each of the first, second, and third sensors, all of them are photoelectric sensors.

[0088] In this embodiment, as Figure 2 As shown, scanning devices SC1 and SC2 are installed at opposite corners of the battery swapping channel. For example, two first sensors (e.g., S1, S2) are installed at the entrance of the battery swapping channel, two second sensors (e.g., S3, S4) are installed inside the battery swapping channel, and two third sensors (e.g., S5, S6) are installed at the exit of the battery swapping channel.

[0089] In this embodiment, by setting the two first sensors, two second sensors, and two third sensors as photoelectric sensors, the location status of the battery swapping vehicle can be detected more accurately while reducing equipment costs.

[0090] In an optional embodiment, the battery swapping area scanning device is divided into... Figure 3 The diagram shows four scanning regions: region A, region B, region Cxx, and region D. It should be noted that... Figure 3 The scanning directions of the first region A, the second region B, the third region Cxx, and the fourth region D are... Figure 1 and Figure 2 The direction of vehicle entry is perpendicular; if the first sensor, the second sensor, and the third sensor do not detect any battery swapping vehicles, then the battery swapping channel is determined to be in a vehicle-free state, and the target scanning area is the first area A.

[0091] In this embodiment, the first area A represents the scanning area before the battery swapping vehicle enters or after it leaves the battery swapping channel, the second area B represents the scanning area when the battery swapping vehicle enters the battery swapping channel, the third area Cxx represents the scanning area when the battery swapping vehicle is in the battery swapping process, and the fourth area D represents the scanning area when the battery swapping vehicle leaves the battery swapping channel.

[0092] It should be noted that if the first sensor, the second sensor, and the third sensor are not blocked, then if the first sensor, the second sensor, and the third sensor do not detect the battery swapping vehicle, then the state of the battery swapping channel is determined to be a vehicle-free state, and the target scanning area is the first area A.

[0093] In this embodiment, if no battery swapping vehicle is detected by the first sensor, the second sensor, and the third sensor, it indicates that the battery swapping vehicle is not in the battery swapping channel. This determines that the battery swapping channel is in a vehicle-free state. At this time, the target scanning area is the first area before the battery swapping vehicle enters the battery swapping channel or after it leaves the battery swapping channel.

[0094] In an optional embodiment, if the first sensor detects a battery-swapping vehicle but the second and third sensors do not, the battery-swapping channel is determined to be in the vehicle entry state, and the target scanning area is switched from the first area A to the second area B.

[0095] In this embodiment, if the first sensor is blocked, it is determined that the first sensor has detected a battery-swapping vehicle. If neither the second nor the third sensor is blocked, it is determined that neither the second nor the third sensor has detected a battery-swapping vehicle. Furthermore, the state of the battery-swapping channel is determined to be the vehicle entry state, and the target scanning area is switched from the first area A to the second area B.

[0096] In this embodiment, if the first sensor detects a battery-swapping vehicle but the second and third sensors do not, it indicates that the battery-swapping vehicle is entering the battery-swapping channel. This determines the state of the battery-swapping channel as the vehicle-entry state, and the target scanning area is switched from the first area to the second area when the battery-swapping vehicle enters the battery-swapping channel.

[0097] In an optional embodiment, if the second sensor detects a battery-swapping vehicle while the first and third sensors do not, the battery-swapping channel is determined to be in a battery-swapping state, and the target scanning area is switched from the second region B to the third region Cxx.

[0098] In this embodiment, if the second sensor is blocked, it is determined that the second sensor has detected a battery-swapping vehicle. If neither the first nor the third sensor is blocked, it is determined that neither the first nor the third sensor has detected a battery-swapping vehicle. Furthermore, the state of the battery-swapping channel is determined to be the battery-swapping state, and the target scanning area is switched from the second area B to the third area Cxx.

[0099] In this embodiment, if the second sensor detects the battery swapping vehicle but the first and third sensors do not, it indicates that the battery swapping vehicle has entered the battery swapping area within the battery swapping channel. This determines the state of the battery swapping channel as the battery swapping state, and the target scanning area is switched from the second area to the third area where the battery swapping vehicle is in the battery swapping process.

[0100] In an optional embodiment, if the third sensor detects a battery-swapping vehicle while the first and second sensors do not, the battery-swapping channel is determined to be in a vehicle-departing state, and the target scanning area is switched from the third region Cxx to the fourth region D.

[0101] In this embodiment, if the third sensor is blocked, it is determined that the third sensor has detected a battery-swapping vehicle. If neither the first nor the second sensor is blocked, it is determined that neither the first nor the second sensor has detected a battery-swapping vehicle. Furthermore, the state of the battery-swapping channel is determined to be the vehicle departure state, and the target scanning area is switched from the third region Cxx to the fourth region D.

[0102] In this embodiment, if the third sensor detects a battery-swapping vehicle but the first and second sensors do not, it indicates that the battery-swapping vehicle is leaving the battery-swapping channel. This determines the state of the battery-swapping channel as the vehicle leaving the channel, and the target scanning area is switched from the third area to the fourth area when the battery-swapping vehicle leaves the battery-swapping channel.

[0103] In practical implementation, the switching of scanning equipment (e.g., laser scanner) is performed by a safety PLC (controller) based on the status of two first sensors (e.g., S1, S2), two second sensors (e.g., S3, S4), and two third sensors (e.g., S5, S6) in the power swapping area; the switching logic of the scanning area is shown in Table 1:

[0104] Table 1

[0105] NO. state Battery swapping S1 S2 S3 S4 S5 S6 SC1 / SC2 1 No car √ 1 1 1 1 1 1 A 2 Enter the vehicle × 0 0 0 0 1 1 B 3 Battery swapping √ 1 1 0 0 1 1 Cxx 4 Departure × 1 1 0 0 0 0 D

[0106] Specifically, when there is no vehicle (for example, S1, S2, S3, S4, S5, and S6 are not blocked, i.e., S1, S2, S3, S4, S5, and S6 are all 1), the protection area shape A (i.e., the target scanning area is the first area A) is activated.

[0107] When a battery-swapping vehicle triggers the first sensor at the entrance of the battery-swapping channel (for example, S1 and S2 detect a battery-swapping vehicle), the area protection is switched from the first area A to the second area B.

[0108] When there is a vehicle in the battery swapping area (i.e., S1 and S2 are removed from the blockage in sequence, and S3 and S4 are blocked by the battery swapping vehicle in sequence), that is, when the battery swapping vehicle triggers the second sensor and the PLC (controller) starts the battery swapping, the scanning equipment starts the area protection from the second area B to the third area Cxx.

[0109] When the system reports that the battery swapping is complete, and the battery swapping vehicle triggers the third sensor at the battery swapping channel exit (i.e., S5 and S6 detect the battery swapping vehicle), the area protection is switched from the third area Cxx to the fourth area D.

[0110] When there is no vehicle, that is, when S1, S2, S3, S4, S5 and S6 are not blocked by the battery swapping vehicle, the protection zone is switched from the fourth zone D to the first zone A.

[0111] In an optional embodiment, the scanning device is also configured to output an alarm message when it detects an obstruction unrelated to the battery swapping vehicle in the target scanning area.

[0112] In this embodiment, when the scanning device detects an obstruction unrelated to the battery swapping vehicle in the target scanning area, it outputs an alarm message to prevent such obstructions from accidentally entering the battery swapping channel.

[0113] In an optional embodiment, the installation height of the sensor and / or scanning device is not lower than the sum of the heights of the battery swapping equipment and the battery swapping vehicle's battery pack within the battery swapping station; it should be noted that this installation height ensures that obstacles or battery swapping vehicles are scanned, and the range of this installation height is 430mm-480mm; the lifting height of the battery swapping vehicle is 320mm.

[0114] In an optional embodiment, if the battery swapping channel is in a closed state, the scanning device is positioned at a diagonal position in the battery swapping channel;

[0115] If the battery swapping channel is not closed, the scanning device will be set within a preset range at the front and rear of the corresponding battery swapping vehicle when it is in the battery swapping state.

[0116] In this embodiment, the scanning device is set in different positions according to the state of the battery swapping channel, which enables a clearer and more complete scan of the corresponding area.

[0117] In this embodiment, the preset range is set according to the actual situation, and no specific limitation is made here.

[0118] This embodiment uses the cooperation between sensors, controllers, and scanning equipment to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area of ​​the battery swapping channel, so as to prevent obstructions unrelated to the battery swapping vehicle from accidentally entering the battery swapping channel and improve the safety of battery swapping.

[0119] Example 2

[0120] This embodiment provides a safety detection method for a battery swapping area. The safety detection method is applicable to the safety detection device for the battery swapping area in Embodiment 1. The safety detection device includes a scanning device, sensors, and a controller, such as... Figure 4 As shown, the security testing methods include:

[0121] S1. Detect the current location of the battery swapping vehicle using sensors and transmit the current location to the controller;

[0122] S2. The controller determines the status of the battery swapping channel based on the received current location and transmits the status of the battery swapping channel to the scanning device.

[0123] S3. The target scanning area is obtained by scanning the device according to the status of the battery swapping channel, and the target scanning area is scanned to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area.

[0124] In this embodiment, the dimensions of the battery swapping station are as follows: Figure 1 As shown, Figure 1 The battery swapping station is equipped with B1 compartment, B2 compartment, front room, rear room, battery swapping channel, battery swapping area for battery swapping vehicles, and vehicle entry direction.

[0125] In this embodiment, the scanning device includes a laser scanner.

[0126] In this embodiment, the cooperation between sensors, controllers and scanning devices is used to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area of ​​the battery swapping channel, so as to prevent obstructions unrelated to the battery swapping vehicle from accidentally entering the battery swapping channel and improve the safety of battery swapping.

[0127] In an optional embodiment, the number of sensors is multiple; including at least one first sensor disposed at the entrance of the battery swapping channel; at least one second sensor disposed within the battery swapping channel; and at least one third sensor disposed at the exit of the battery swapping channel. The battery swapping area scanning device is divided into... Figure 3 The diagram shows four scanning regions: region A, region B, region Cxx, and region D. It should be noted that... Figure 3 The scanning directions of the first region A, the second region B, the third region Cxx, and the fourth region D are... Figure 1 and Figure 2 The direction of vehicle entry is perpendicular; this safety inspection method also includes:

[0128] If none of the first, second, and third sensors detect a battery-swapping vehicle, the battery-swapping channel is determined to be in a vehicle-free state, and the target scanning area is the first area A.

[0129] In this embodiment, the first area A represents the scanning area before the battery swapping vehicle enters or after it leaves the battery swapping channel, the second area B represents the scanning area when the battery swapping vehicle enters the battery swapping channel, the third area Cxx represents the scanning area when the battery swapping vehicle is in the battery swapping process, and the fourth area D represents the scanning area when the battery swapping vehicle leaves the battery swapping channel.

[0130] It should be noted that if the first sensor, the second sensor, and the third sensor are not blocked, then if the first sensor, the second sensor, and the third sensor do not detect the battery swapping vehicle, then the state of the battery swapping channel is determined to be a vehicle-free state, and the target scanning area is the first area A.

[0131] In this embodiment, if no battery swapping vehicle is detected by the first sensor, the second sensor, and the third sensor, it indicates that the battery swapping vehicle is not in the battery swapping channel. This determines that the battery swapping channel is in a vehicle-free state. At this time, the target scanning area is the first area before the battery swapping vehicle enters the battery swapping channel or after it leaves the battery swapping channel.

[0132] In an optional embodiment, the security detection method further includes:

[0133] If the first sensor detects a battery-swapping vehicle, but the second and third sensors do not, then the battery-swapping channel is determined to be in the vehicle entry state, and the target scanning area is switched from the first area A to the second area B.

[0134] In this embodiment, if the first sensor is blocked, it is determined that the first sensor has detected a battery-swapping vehicle. If neither the second nor the third sensor is blocked, it is determined that neither the second nor the third sensor has detected a battery-swapping vehicle. Furthermore, the state of the battery-swapping channel is determined to be the vehicle entry state, and the target scanning area is switched from the first area A to the second area B.

[0135] In this embodiment, if the first sensor detects a battery-swapping vehicle but the second and third sensors do not, it indicates that the battery-swapping vehicle is entering the battery-swapping channel. This determines the state of the battery-swapping channel as the vehicle-entry state, and the target scanning area is switched from the first area to the second area when the battery-swapping vehicle enters the battery-swapping channel.

[0136] In an optional embodiment, the security detection method further includes:

[0137] If the second sensor detects a battery-swapping vehicle, but the first and third sensors do not, then the battery-swapping channel is determined to be in battery-swapping mode, and the target scanning area is switched from the second area B to the third area Cxx.

[0138] In this embodiment, if the second sensor is blocked, it is determined that the second sensor has detected a battery-swapping vehicle. If neither the first nor the third sensor is blocked, it is determined that neither the first nor the third sensor has detected a battery-swapping vehicle. Furthermore, the state of the battery-swapping channel is determined to be the battery-swapping state, and the target scanning area is switched from the second area B to the third area Cxx.

[0139] In this embodiment, if the second sensor detects the battery swapping vehicle but the first and third sensors do not, it indicates that the battery swapping vehicle has entered the battery swapping area within the battery swapping channel. This determines the state of the battery swapping channel as the battery swapping state, and the target scanning area is switched from the second area to the third area where the battery swapping vehicle is in the battery swapping process.

[0140] In an optional embodiment, the security detection method further includes:

[0141] If the third sensor detects a battery-swapping vehicle, but the first and second sensors do not, then the battery-swapping channel is determined to be in the vehicle-departing state, and the target scanning area is switched from the third area Cxx to the fourth area D.

[0142] In this embodiment, if the third sensor is blocked, it is determined that the third sensor has detected a battery-swapping vehicle. If neither the first nor the second sensor is blocked, it is determined that neither the first nor the second sensor has detected a battery-swapping vehicle. Furthermore, the state of the battery-swapping channel is determined to be the vehicle departure state, and the target scanning area is switched from the third region Cxx to the fourth region D.

[0143] In this embodiment, if the third sensor detects a battery-swapping vehicle but the first and second sensors do not, it indicates that the battery-swapping vehicle is leaving the battery-swapping channel. This determines the state of the battery-swapping channel as the vehicle leaving the channel, and the target scanning area is switched from the third area to the fourth area when the battery-swapping vehicle leaves the battery-swapping channel.

[0144] In the specific implementation process, the scanning equipment (e.g., laser scanner) is switched by the safety PLC (controller) according to the status of the vehicle positioning signal S7 of the two first sensors (e.g., S1, S2), two second sensors (e.g., S3, S4), and two third sensors (e.g., S5, S6) in the battery swapping area; the scanning area switching logic is shown in Table 1 of Embodiment 1.

[0145] Specifically, when there is no vehicle (for example, S1, S2, S3, S4, S5, and S6 are not blocked, i.e., S1, S2, S3, S4, S5, and S6 are all 1), the protection area shape A (i.e., the target scanning area is the first area A) is activated.

[0146] When a battery-swapping vehicle triggers the first sensor at the entrance of the battery-swapping channel (for example, S1 and S2 detect a battery-swapping vehicle), the area protection is switched from the first area A to the second area B.

[0147] When there is a vehicle in the battery swapping area (i.e., S1 and S2 are removed from the blockage in sequence, and S3 and S4 are blocked by the battery swapping vehicle in sequence), that is, when the battery swapping vehicle triggers the second sensor and the PLC (controller) starts the battery swapping, the scanning equipment starts the area protection from the second area B to the third area Cxx.

[0148] When the system reports that the battery swapping is complete, and the battery swapping vehicle triggers the third sensor at the battery swapping channel exit (i.e., S5 and S6 detect the battery swapping vehicle), the area protection is switched from the third area Cxx to the fourth area D.

[0149] When there is no vehicle, that is, when S1, S2, S3, S4, S5 and S6 are not blocked by the battery swapping vehicle, the protection zone is switched from the fourth zone D to the first zone A.

[0150] In an optional embodiment, the security detection method further includes:

[0151] When the scanning device detects an obstruction unrelated to the battery swapping vehicle in the target scanning area, it outputs an alarm message.

[0152] In this embodiment, when the scanning device detects an obstruction unrelated to the battery swapping vehicle in the target scanning area, it outputs an alarm message to prevent such obstructions from accidentally entering the battery swapping channel.

[0153] This embodiment uses the cooperation between sensors, controllers, and scanning equipment to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area of ​​the battery swapping channel, so as to prevent obstructions unrelated to the battery swapping vehicle from accidentally entering the battery swapping channel and improve the safety of battery swapping.

[0154] While specific embodiments of this disclosure have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this disclosure, but all such changes and modifications fall within the scope of protection of this disclosure.

Claims

1. A safety detection device for a battery swapping area, applied within a battery swapping station, characterized in that, The safety detection device includes a scanning device, a sensor, and a controller. The scanning device is located at a diagonal position in the battery swapping channel, and the sensor is located on the travel route of the battery swapping vehicle. The sensor is used to detect the current location of the battery swapping vehicle and transmit the current location to the controller; The controller is used to determine the status of the battery swapping channel based on the received current location, and transmit the status of the battery swapping channel to the scanning device; The scanning device is used to obtain a target scanning area based on the received status of the battery swapping channel, and to scan the target scanning area to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area.

2. The safety detection device for the battery swapping area as described in claim 1, characterized in that, The number of sensors is multiple; including at least one first sensor, which is disposed at the entrance of the battery swapping channel; at least one second sensor, which is disposed within the battery swapping channel; and at least one third sensor, which is disposed at the exit of the battery swapping channel.

3. The safety detection device for the battery swapping area as described in claim 2, characterized in that, The first sensor is located on one side of the battery swapping channel along a first direction in which the battery swapping vehicle enters and exits the channel, and the first sensor is capable of detecting a region in a second direction perpendicular to the first direction; the second sensor is located on one side of the battery swapping channel along the first direction in which the battery swapping vehicle enters and exits the channel, and the second sensor is capable of detecting a region in a second direction perpendicular to the first direction; the third sensor is located on one side of the battery swapping channel along the first direction in which the battery swapping vehicle enters and exits the channel, and the third sensor is capable of detecting a region in a second direction perpendicular to the first direction.

4. The safety detection device for the battery swapping area as described in claim 2, characterized in that, The first sensor is a single sensor, which covers a first preset distance in a first direction; and / or, the second sensor is a single sensor, which covers a second preset distance in a first direction; and / or, the third sensor is a single sensor, which covers a third preset distance in a first direction. Preferably, when there is only one first sensor, one second sensor, and one third sensor, all of the first sensor, the second sensor, and the third sensor are grating sensors; And / or, The first sensor consists of two sensors, and the distance between the two first sensors in the first direction is a first preset distance; and / or, the second sensor consists of two sensors, and the distance between the two second sensors in the first direction is a second preset distance; and / or, the third sensor consists of two sensors, and the distance between the two third sensors in the first direction is a third preset distance; Preferably, when there are two of each of the first sensor, the second sensor, and the third sensor, all of them are photoelectric sensors.

5. The safety detection device for the battery swapping area as described in claim 2, characterized in that, If none of the first sensor, the second sensor, or the third sensor detects the battery swapping vehicle, then the battery swapping channel is determined to be in a vehicle-free state, and the target scanning area is the first area.

6. The safety detection device for the battery swapping area as described in claim 5, characterized in that, If the first sensor detects the battery-swapping vehicle, but the second and third sensors do not, then the battery-swapping channel is determined to be in the vehicle entry state, and the target scanning area is switched from the first area to the second area.

7. The safety detection device for the battery swapping area as described in claim 6, characterized in that, If the second sensor detects the battery-swapping vehicle, but the first and third sensors do not, then the battery-swapping channel is determined to be in a battery-swapping state, and the target scanning area is switched from the second area to the third area.

8. The safety detection device for the battery swapping area as described in claim 7, characterized in that, If the third sensor detects the battery-swapping vehicle, but the first and second sensors do not, then the battery-swapping channel is determined to be in a vehicle-departing state, and the target scanning area is switched from the third area to the fourth area.

9. The safety detection device for the battery swapping area as described in claim 1, characterized in that, The scanning device includes a laser scanner; And / or, The scanning device is also used to output an alarm message when it detects an obstruction unrelated to the battery swapping vehicle in the target scanning area; And / or, The installation height of the sensor and / or scanning device shall not be less than the sum of the heights of the battery swapping equipment and the battery pack of the battery swapping vehicle in the battery swapping station; And / or, If the battery swapping channel is closed, the scanning device should be placed at a diagonal position in the battery swapping channel; If the battery swapping channel is not closed, the scanning device will be set within a preset range of the front and rear of the vehicle when the battery swapping vehicle is in the battery swapping state.

10. A safety detection method for a battery swapping area, wherein the safety detection method is applicable to the safety detection device for the battery swapping area as described in any one of claims 1-9, characterized in that, The security detection device includes a scanning device, a sensor, and a controller; the security detection method includes: The sensor detects the current location of the battery swapping vehicle and transmits the current location to the controller. The controller determines the status of the battery swapping channel based on the received current location and transmits the status of the battery swapping channel to the scanning device. The scanning device obtains the target scanning area based on the received status of the battery swapping channel, and scans the target scanning area to detect whether there are any obstructions unrelated to the battery swapping vehicle in the target scanning area.

11. The safety detection method for a battery swapping area as described in claim 10, characterized in that, The number of sensors is multiple; including at least one first sensor, which is disposed at the entrance of the battery swapping channel; and at least one second sensor, which is disposed inside the battery swapping channel; The safety detection method further includes: and at least one third sensor, the third sensor being disposed at the exit of the battery swapping channel; If none of the first sensor, the second sensor, and the third sensor detects the battery swapping vehicle, then the battery swapping channel is determined to be in a vehicle-free state, and the target scanning area is the first area. And / or, The security detection method also includes: If the first sensor detects the battery swapping vehicle, but the second and third sensors do not, then the battery swapping channel is determined to be in the vehicle entry state, and the target scanning area is switched from the first area to the second area. And / or, The security detection method also includes: If the second sensor detects the battery-swapping vehicle, but the first and third sensors do not detect the battery-swapping vehicle, then the state of the battery-swapping channel is determined to be battery-swapping state, and the target scanning area is switched from the second area to the third area; And / or, The security detection method also includes: If the third sensor detects the battery swapping vehicle, but the first and second sensors do not, then the state of the battery swapping channel is determined to be the vehicle departure state, and the target scanning area is switched from the third area to the fourth area. And / or, The security detection method also includes: When the scanning device detects an obstruction unrelated to the battery swapping vehicle in the target scanning area, it outputs an alarm message.

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