WO2021109497A1 - 货柜落货检测方法和系统、以及货柜 - Google Patents
货柜落货检测方法和系统、以及货柜 Download PDFInfo
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- WO2021109497A1 WO2021109497A1 PCT/CN2020/093121 CN2020093121W WO2021109497A1 WO 2021109497 A1 WO2021109497 A1 WO 2021109497A1 CN 2020093121 W CN2020093121 W CN 2020093121W WO 2021109497 A1 WO2021109497 A1 WO 2021109497A1
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
- G07F9/026—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus for alarm, monitoring and auditing in vending machines or means for indication, e.g. when empty
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- the present disclosure relates to the technical field of goods display, storage, or sales, and provides a container drop detection method and system, and a container.
- each vending container will be equipped with an infrared drop detection system.
- the device When the user selects the product, the device will push the selected product through the spring, and then use the infrared detection system to detect whether the product has fallen successfully.
- infrared rays are divergent rays
- infrared rays when infrared rays are emitted from the transmitting end, multiple receiving ends may receive the same infrared rays at the same time, causing interference.
- the falling object is small or fast, there is a risk of false detection.
- the embodiments of the present disclosure provide a container drop detection method to at least realize the mutual pairing of the signal transmitting unit and the signal receiving unit to ensure that the received signals correspond to each other.
- a container dropping detection method including: a signal transmitting unit sends a synchronous electric signal to a signal receiving unit paired therewith; in response to receiving the synchronous electric signal, the The signal receiving unit turns on the infrared receiving terminal; the signal transmitting unit transmits an infrared detection signal to the infrared receiving terminal.
- the container dropping detection method further includes: sequentially executing the steps of sending out synchronous electrical signals, turning on the infrared receiving end, and emitting infrared detection signals on multiple pairs of signal transmitting units and signal receiving units that are paired with each other. A step of.
- the container dropping detection method further includes: determining the number of the signal receiving units that have received the infrared detection signal within a first set time; and responding to the signal receiving the infrared detection signal If the number of receiving units is less than the actual total number of signal receiving units, it is determined that the goods have fallen; in response to the number of signal receiving units receiving the infrared detection signal being equal to the actual total number of signal receiving units, it is determined that no goods have fallen .
- the container dropping detection method further includes: within a second set time, determining whether the signal receiving unit never receives the infrared detection signal; in response to the occurrence of the signal receiving unit never receiving the infrared detection Signal, it is determined that the signal transmitting unit and the signal receiving unit of the group are faulty.
- the container dropping detection method further includes: in response to the infrared receiving terminal being turned on and a third set time has elapsed, the signal transmitting unit transmits an infrared detection signal to the infrared receiving terminal.
- the container unloading detection method further includes: the signal receiving unit sends a self-check electrical signal to the signal transmitting unit; in response to receiving the self-check electrical signal, the signal transmitting unit The synchronous electrical signal is sent to the signal receiving unit that is paired with it; within a fourth set time, in response to the signal transmitting unit not receiving the self-check electrical signal, an abnormal warning is issued.
- sending the self-check electric signal includes sending an electric pulse signal or a wireless signal; and sending the synchronous electric signal includes sending an electric pulse signal or a wireless signal.
- a container drop detection system including: a signal transmitting unit having an infrared transmitting end; a signal receiving unit electrically connected to the signal transmitting unit and having an infrared receiving end; wherein , The signal transmitting unit sends a synchronous electric signal to the signal receiving unit paired with it; the signal receiving unit turns on the infrared receiving terminal in response to receiving the synchronous electric signal; and the infrared transmitting terminal transmits to the infrared receiving terminal Infrared detection signal.
- the container drop detection system includes multiple sets of signal transmitting units and signal receiving units that are paired with each other, wherein multiple sets of paired signal transmitting units and signal receiving units respectively emit synchronous electrical signals and turn on Infrared receiving terminal and transmitting infrared detection signal.
- the container drop detection system further includes a drop detection unit, wherein the drop detection unit is configured to: within a first set time, determine that the signal receiving an infrared detection signal is received The number of units; in response to the number of the signal receiving units receiving the infrared detection signal being less than the actual total number of the signal receiving units, it is determined that the goods fall; the number of the signal receiving units in response to receiving the infrared detection signal It is equal to the actual total number of the signal receiving units, and it is determined that no goods have fallen.
- the container drop detection system further includes: an infrared detection unit, which determines whether the signal receiving unit has never received the infrared detection signal within a second set time; the fault detection unit responds to the occurrence of the signal The receiving unit has never received the infrared detection signal, and it is determined that the signal transmitting unit and the signal receiving unit of this group are faulty.
- the infrared transmitting terminal transmits an infrared detection signal to the infrared receiving terminal in response to the infrared receiving terminal being turned on and a third set time has elapsed.
- the container unloading detection system further includes a warning unit, wherein the signal receiving unit sends a self-check electrical signal to the signal emitting unit; the signal emitting unit responds to receiving the self-check The electrical signal sends the synchronous electrical signal to the signal receiving unit that is paired with it; or the warning unit sends out an abnormality in response to the signal transmitting unit not receiving the self-check electrical signal within the fourth set time Warning.
- a container which includes the container drop detection system as described above.
- the signal transmitting unit when a user uses the container to make a purchase, the signal transmitting unit will send a synchronous electric signal to the paired signal receiving unit, and the signal receiving unit will respond accordingly after receiving the electric signal Turn on the infrared receiving end, at this time, the signal transmitting unit will send an infrared detection signal to the infrared receiving end to detect whether the goods are dropped.
- the infrared detection signal is transmitted synchronously between a group of signal transmitting units and signal receiving units that are matched with each other, and the infrared detection signal is not received by other signal receiving units by mistake.
- the synchronization and correspondence of the received signals can be ensured, the transmitter and the receiver can receive one-to-one without interfering with each other, and the confusion and loss caused by misdetection to the user can be reduced as much as possible.
- Fig. 1 is a schematic flow chart of a method for detecting dropped goods of a container according to an embodiment of the present disclosure.
- connection and “connected” should be understood in a broad sense, for example, they may be fixed or detachable connections. Or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium.
- connection should be understood in a broad sense, for example, they may be fixed or detachable connections. Or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium.
- the first feature “on” or “under” the second feature may be in direct contact with the first and second features, or the first and second features may pass through the middle. Indirect media contact.
- the "above”, “above” and “above” of the first feature on the second feature may mean that the first feature is directly above or diagonally above the second feature, or it simply means that the level of the first feature is higher than that of the second feature.
- the “below”, “below” and “below” of the second feature of the first feature may mean that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
- an embodiment of the present disclosure provides a method for detecting container dropping.
- the method for detecting unloaded containers includes the following steps:
- the signal transmitting unit sends out a synchronous electric signal to the signal receiving unit that is paired with it;
- the signal receiving unit In response to receiving the synchronous electrical signal, the signal receiving unit turns on the infrared receiving end;
- the signal transmitting unit transmits infrared detection signals to the infrared receiving end.
- the signal transmitting unit first sends out a synchronous electric signal to the signal receiving unit paired with it; when the signal receiving unit receives the synchronous electric signal, the signal receiving unit will turn on the infrared receiving end to receive Infrared detection signal. After the infrared receiving terminal is turned on, the signal transmitting unit will transmit an infrared detection signal to the infrared receiving terminal to detect whether the goods are dropped.
- the infrared detection signal is transmitted synchronously between a group of signal transmitting units and signal receiving units that are matched with each other, and the infrared detection signal is not received by other signal receiving units by mistake.
- the synchronization and correspondence of the received signals can be ensured, and the transmitter and the receiver can transmit/receive one-to-one without interfering with each other, thereby reducing the confusion and loss caused by misdetection to users as much as possible.
- the signal transmitting unit and the signal receiving unit they have an infrared transmitting terminal and an infrared receiving terminal respectively.
- the infrared detection signal is transmitted between the infrared transmitting terminal and the infrared receiving terminal, and the function is to detect Is there any goods falling? When the goods fall, the goods will cut the infrared detection signal, so that the infrared receiving end cannot receive the infrared detection signal. At this time, it can be determined that the goods have fallen.
- the signal transmitting unit and the signal receiving unit respectively have a signal transmitting circuit and a signal receiving circuit, and the two are electrically connected to each other to perform electrical signal transmission, that is, the electrical signal is used to perform the synchronization matching operation as described above, and The self-check operation will be described below. That is to say, two operations of infrared detection signal transmission and electrical signal transmission are simultaneously performed between the signal transmitting unit and the signal receiving unit.
- the method for detecting container dropping may further include the following steps:
- the steps of sending out a synchronous electric signal, the step of turning on the infrared receiving end, and the step of emitting an infrared detection signal are respectively performed on a plurality of groups of paired signal transmitting units and signal receiving units.
- each signal transceiving unit group includes a signal transmitting unit and a signal receiving unit that are paired and synchronized with each other, and the two are arranged in one-to-one correspondence.
- each group of signal transceiving unit groups will execute the steps of sending out synchronous electrical signals, turning on the infrared receiving end, and transmitting infrared detection signals; and the previous group of signal transceiving unit groups will perform the above-mentioned steps. After the operation steps, the next group of signal transceiving unit groups will execute its own operation steps. At this time, the previous group of signal transceiving unit groups will be closed because they have been executed.
- the duration of a detection cycle can be set as required, for example, a detection cycle can last tens or hundreds of milliseconds; however, the present disclosure is not limited to any specific duration. Since the duration of a detection cycle is usually very short, and the user operates the container for a relatively long time, the user can continue to poll for the detection during the time the user operates the container, that is, when the detection cycle is completed, it will return and repeat until The container is used up. In this way, the dropped goods can be detected more accurately and accurately. In addition, it should be understood that, compared with the time when the goods fall, the time of a detection cycle is very short, so it will not happen that all the infrared detection signals are turned off when the goods are dropped.
- the container includes 8 groups of signal transceiving unit groups, and each group of signal transceiving unit groups includes 1 signal transmitting unit and 1 signal receiving unit, first perform the steps of sending out synchronous electrical signals for the first group of signal transceiving unit groups, Steps to turn on the infrared receiver, and to transmit infrared detection signals.
- the first group of signal transceiving unit group is executed, it will be temporarily closed.
- the second group of signal transceiving unit group performs the above operation, and so on until the 8th group of signal transceiving unit group has performed the above operation, and then it is completed once. Detection cycle.
- the number of signal transceiver unit groups, the number of durations of the detection period, and the time are all. It can be set as required.
- the method for detecting container dropping may further include the following steps:
- the number of signal receiving units that receive infrared detection signals is less than the actual total number of signal receiving units, it means that there are signal receiving units that have not received infrared detection signals. , That is, there is a situation where the infrared detection signal is cut by the dropped goods, and it can be determined that the goods have fallen; when the number of signal receiving units that receive the infrared detection signal is equal to the actual total number of signal receiving units, all signal receiving units are explained All received the infrared detection signal, that is, there is no case that the infrared detection signal is cut by the dropped goods, and at this time, it can be determined that no goods have fallen.
- the above-mentioned infrared detection step of unloading applies the aforementioned means of synchronously pairing the signal transmitting unit and the signal receiving unit, the above-mentioned detection step can have higher detection accuracy and detection accuracy.
- the first set time described above may be any suitable length of time set according to needs.
- the first set time may be any period of time during the user's use of the container (for example, a period of time after the user selects the goods and the spring launches the goods); for another example, in one embodiment, the first set The fixed time can be the total time when the user triggers the start of using the container. That is to say, the selection of the first set time is not limited to a certain type or a specific duration, and it can be set according to specific conditions, and the present disclosure is not limited to this.
- the method for detecting container dropping may further include the following steps:
- the above embodiment provides a self-checking mechanism of the infrared transmitting end and the infrared receiving end of the signal transmitting unit and the signal receiving unit. Specifically, if one or some of the signal receiving units do not receive the infrared detection signal during the user's use of the container, it can actually be considered that there may be two situations: the first is that the infrared detection signal is dropped. Cutting, causing the infrared receiving end to not receive the signal; another possibility is that the infrared transmitting end and/or the infrared receiving end are malfunctioning, resulting in no infrared detection signal.
- the infrared detection unit if one or some of the signal receiving units have not received the infrared detection signal at all times within the second set time, it can be considered that the group of signal transmitting units and signal receiving units are malfunctioning. This is because if the first situation occurs, the infrared receiver may not always be unable to receive the signal. Therefore, through this setting method, not only can accurate and precise detection of unloading be carried out, but also self-checking of the container equipment itself can be carried out at the same time, thus improving and optimizing the use and maintenance operations.
- the above second set time may also be set according to specific needs, and the present disclosure is not limited to a certain or certain specific time.
- the container dropping detection method may further include the following steps:
- the signal transmitting unit transmits an infrared detection signal to the infrared receiving end.
- the signal transmitting unit after the signal transmitting unit sends a synchronous electrical signal to the signal receiving unit, when the infrared receiving end is turned on, it can immediately send an infrared detection signal to the infrared receiving end, which makes the operation faster;
- the signal transmitting unit transmits the infrared detection signal to the infrared receiving terminal, so that the operation can reserve the starting preparation time for the infrared transmitting terminal. It can also make the infrared receiving end open more fully prepared.
- the above third set time can also be set according to specific needs, and the present disclosure is not limited to certain or certain specific ones. time.
- the method for detecting container dropping may further include the following steps:
- the signal receiving unit sends a self-checking electrical signal to the signal transmitting unit
- the signal transmitting unit In response to receiving the self-check electrical signal, the signal transmitting unit sends a synchronous electrical signal to the signal receiving unit paired with it;
- the above embodiment provides a hardware circuit self-checking mechanism between the signal transmitting circuit and the signal receiving circuit of the signal transmitting unit and the signal receiving unit. That is to say, before performing the above-mentioned matching/synchronization operation, the signal receiving unit first sends a self-checking electrical signal to the signal transmitting unit to detect whether the hardware circuit between the signal transmitting unit and the signal receiving unit can operate normally .
- the signal transmitting unit will send a synchronous electrical signal to the signal receiving unit paired with it; in another embodiment, if the signal transmitting unit is within the fourth set time If the self-check electrical signal is not received, an abnormal warning will be issued, and it is determined that the hardware circuit between the signal transmitting unit and the signal receiving unit may be faulty. It can be seen that the container unloading method of the present disclosure also adds a hardware circuit self-check mechanism before the user uses it, so as to ensure the normal operation and operation of the subsequent steps.
- the above fourth set time can also be set according to specific needs, and the present disclosure is not limited to certain or certain specific ones. time.
- the aforementioned hardware circuit self-check mechanism can be executed when the container is powered on for the first time, that is, executed when the container is powered on for the first time; for another example, the aforementioned hardware circuit self-check mechanism can also be executed when the container is powered on for the first time. Execute every time the user uses the container. That is to say, the starting timing of the hardware circuit self-check mechanism does not constitute any special limitation to the present disclosure, and can be appropriately set according to needs.
- the sending of the self-check electrical signal described in the present disclosure may include sending an electrical pulse signal or a wireless signal; and the sending of a synchronous electrical signal described in the present disclosure may include sending an electrical pulse signal. Or wireless signal.
- the self-checking electric signal and the synchronous electric signal sent out may be electric frequency pulse signals; for example, they may be radio signals.
- the above-mentioned signals do not constitute any particular limitation to the present disclosure, and appropriate electrical signals can be selected for use as required.
- a container dropping detection system including:
- the signal transmitting unit has an infrared transmitting terminal
- the signal receiving unit is electrically connected to the signal transmitting unit and has an infrared receiving end;
- the signal transmitting unit sends out a synchronous electric signal to the signal receiving unit paired with it; the signal receiving unit turns on the infrared receiving end in response to receiving the synchronous electric signal; and the infrared transmitting end transmits an infrared detection signal to the infrared receiving end.
- the container drop detection system includes multiple sets of signal transmitting units and signal receiving units that are paired with each other, wherein multiple sets of paired signal transmitting units and signal receiving units respectively send out synchronous electrical signals and turn on the infrared receiving end in sequence. And emit infrared detection signals.
- the container drop detection system further includes a drop detection unit, wherein the drop detection unit is configured as:
- the container drop detection system further includes:
- the infrared detection unit is used to determine whether the signal receiving unit never receives the infrared detection signal within the second set time;
- the fault detection unit is used for determining that the signal transmitting unit and the signal receiving unit of the group are faulty in response to the occurrence that the signal receiving unit has not received the infrared detection signal all the time.
- the infrared transmitting terminal transmits an infrared detection signal to the infrared receiving terminal in response to the infrared receiving terminal being turned on and the third set time has elapsed.
- the container unloading detection system further includes a warning unit, wherein the signal receiving unit sends a self-check electrical signal to the signal transmitting unit; the signal transmitting unit sends a self-check electrical signal to the signal receiving unit that is paired with it in response to receiving the self-check electrical signal Synchronize the electric signal; or the warning unit issues an abnormal warning in response to the signal transmitting unit not receiving the self-check electric signal within the fourth set time.
- a container which includes the container drop detection system as described above.
- the device embodiments described above are only illustrative.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network units.
- Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement it without creative work.
- each implementation manner can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware.
- the above technical solution essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic A disc, an optical disc, etc., include several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiment.
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Abstract
一种货柜落货检测方法和系统、以及货柜。货柜落货检测方法包括：由信号发射单元向与其配对的信号接收单元发出同步电信号；响应于接收到同步电信号，信号接收单元开启红外接收端；由信号发射单元向红外接收端发射红外检测信号。通过这种方式，可以保证相互匹配的一组信号发射单元和信号接收单元之间同步进行红外检测信号的传输，确保发射端与接收端一对一接收，不互相干扰，避免出现红外检测信号被其他信号接收单元误接收的情况。
Description
相关申请的交叉引用
本申请要求于2019年12月2日提交的申请号为2019112144622，发明名称为“货柜落货检测方法和系统、以及货柜”的中国专利申请的优先权，其通过引用方式全部并入本公开。
本公开涉及货品陈列、存储或者售卖技术领域，提供了货柜落货检测方法和系统、以及货柜。
对于当前大部分无人售货柜而言，通常每台售货柜都会设有红外落货检测系统。在用户使用设备期间，当其选择商品后，设备会通过弹簧推出所选中的商品，然后通过红外检测系统检测商品有没有成功落下。
然而，由于红外线是发散状的射线，当红外线从发射端射出时，可能会有多个接收端同时接收到相同的红外线，导致出现干扰情况。在下落物体较小或速度较快时，会出现误检的风险。
发明内容
针对现有技术中存在的缺陷，本公开的实施例提供了货柜落货检测方法，以至少实现信号发射单元和信号接收单元进行相互配对，保证接收的信号相互对应。
根据本公开第一方面的实施例，提供了一种货柜落货检测方法，包括：由信号发射单元向与其配对的信号接收单元发出同步电信号；响应于接收到所述同步电信号，所述信号接收单元开启红外接收端；由所述信号发射单元向所述红外接收端发射红外检测信号。
根据本公开的实施例，该货柜落货检测方法还包括：对多组相互配对的信号发射单元和信号接收单元分别依次执行发出同步电信号的步骤、开启红外接收端的步骤、以及发射红外检测信号的步骤。
根据本公开的实施例，该货柜落货检测方法还包括：在第一设定时间 内，确定接收到红外检测信号的所述信号接收单元的数量；响应于接收到红外检测信号的所述信号接收单元的数量小于所述信号接收单元的实际总数量，确定出现货物落下；响应于接收到红外检测信号的所述信号接收单元的数量等于所述信号接收单元的实际总数量，确定无货物落下。
根据本公开的实施例，该货柜落货检测方法还包括：在第二设定时间内，确定是否出现信号接收单元始终未接收到红外检测信号；响应于出现信号接收单元始终未接收到红外检测信号，认定该组信号发射单元和信号接收单元出现故障。
根据本公开的实施例，该货柜落货检测方法还包括：响应于所述红外接收端开启并经过第三设定时间，由所述信号发射单元向所述红外接收端发射红外检测信号。
根据本公开的实施例，该货柜落货检测方法还包括：由所述信号接收单元向所述信号发射单元发出自检电信号；响应于接收到所述自检电信号，所述信号发射单元向与其配对的所述信号接收单元发出所述同步电信号；在第四设定时间内，响应于所述信号发射单元未接收到所述自检电信号，发出异常警示。
根据本公开的实施例，发出所述自检电信号包括发出电脉冲信号或者无线信号；并且发出所述同步电信号包括发出电脉冲信号或者无线信号。
根据本公开第二方面的实施例，提供了一种货柜落货检测系统，包括：信号发射单元，具有红外发射端；信号接收单元，与所述信号发射单元电连接并具有红外接收端；其中，所述信号发射单元向与其配对的信号接收单元发出同步电信号；所述信号接收单元响应于接收到所述同步电信号开启红外接收端；并且所述红外发射端向所述红外接收端发射红外检测信号。
根据本公开的实施例，所述货柜落货检测系统包括多组相互配对的信号发射单元和信号接收单元，其中，多组相互配对的信号发射单元和信号接收单元分别依次发出同步电信号、开启红外接收端以及发射红外检测信号。
根据本公开的实施例，该货柜落货检测系统还包括落货检测单元，其中，所述落货检测单元配置成：在第一设定时间内，确定接收到红外检测信号的所述信号接收单元的数量；响应于接收到红外检测信号的所述信号 接收单元的数量小于所述信号接收单元的实际总数量，确定出现货物落下；响应于接收到红外检测信号的所述信号接收单元的数量等于所述信号接收单元的实际总数量，确定无货物落下。
根据本公开的实施例，该货柜落货检测系统还包括：红外检测单元，在第二设定时间内，确定是否出现信号接收单元始终未接收到红外检测信号；故障检测单元，响应于出现信号接收单元始终未接收到红外检测信号，认定该组信号发射单元和信号接收单元出现故障。
根据本公开的实施例，所述红外发射端响应于所述红外接收端开启并经过第三设定时间，向所述红外接收端发射红外检测信号。
根据本公开的实施例，该货柜落货检测系统还包括警示单元，其中，所述信号接收单元向所述信号发射单元发出自检电信号；所述信号发射单元响应于接收到所述自检电信号向与其配对的所述信号接收单元发出所述同步电信号；或者所述警示单元在第四设定时间内，响应于所述信号发射单元未接收到所述自检电信号，发出异常警示。
根据本公开第三方面的实施例，提供了一种货柜，该货柜包括如上所述的货柜落货检测系统。
本公开的有益效果在于：
在本公开提供的货柜落货检测方法和系统、以及货柜中，当用户使用货柜进行购物时，信号发射单元会向配对的信号接收单元发出同步电信号，信号接收单元接收到电信号之后会相应开启红外接收端，此时信号发射单元会向红外接收端发出红外检测信号，以对是否出现落货进行检测。通过这种方式，可以保证相互匹配的一组信号发射单元和信号接收单元之间同步进行红外检测信号的传输，而不会出现红外检测信号被其他信号接收单元误接收的情况。借助这种设置，可以保证接收信号的同步和对应性，确保发射端与接收端一对一接收，不互相干扰，尽可能的地减少误检测给用户带来的困惑和损失。
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本公开实施例的货柜落货检测方法的示意性流程图。
下面结合附图和实施例对本公开的实施方式作进一步详细描述。以下实施例用于说明本公开，但不能用来限制本公开的范围。
在本公开实施例的描述中，需要说明的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开实施例的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本公开实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开实施例中的具体含义。
在本公开实施例中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开实施例的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点 可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
现参照图1，对本公开的实施例进行描述。应当理解的是，以下所述仅是本公开的示意性实施方式，并不意味着对本公开构成任何限定。
如图1所示，本公开的实施例提供了一种货柜落货检测方法。该货柜落货检测方法包括以下步骤：
由信号发射单元向与其配对的信号接收单元发出同步电信号；
响应于接收到同步电信号，信号接收单元开启红外接收端；
由信号发射单元向红外接收端发射红外检测信号。
通常情况下，红外落货检测装置大部分采用发射端与接收端直接同时开启，然后轮询检测接收端状态。但是这期间就会出现发射端与接收端各个管头互相干扰，无法检测到有物体落下的情况。因此，在本公开实施例提供的方法中，首先由信号发射单元向与其配对的信号接收单元发出同步电信号；当信号接收单元接收到同步电信号时，信号接收单元会开启红外接收端来接收红外检测信号。在红外接收端开启之后，信号发射单元会向红外接收端发射红外检测信号，以用于检测是否出现落货。
通过这种方式，可以保证相互匹配的一组信号发射单元和信号接收单元之间同步进行红外检测信号的传输，而不会出现红外检测信号被其他信号接收单元误接收的情况。借助这种设置，可以保证接收信号的同步和对应性，确保发射端与接收端一对一发射/接收，不互相干扰，从而尽可能的地减少误检测给用户带来的困惑和损失。
此处需要指出的是，对于信号发射单元和信号接收单元而言，二者分别具有红外发射端和红外接收端，红外检测信号在红外发射端和红外接收端之间传输，作用是用于检测是否有货物落下。当有货物落下时，货物会切割红外检测信号，导致红外接收端无法收到红外检测信号，此时可以判定出现货物落下。
另外，信号发射单元和信号接收单元还分别具有信号发射电路和信号接收电路，并且二者之间相互电连接从而进行电信号的传输，即，利用电信号进行如上所述的同步匹配操作、以及将在以下进行描述的自检操作。 也就是说，信号发射单元和信号接收单元之间同时会进行红外检测信号的传输和电信号的传输两种操作。
进一步地，在一个实施例中，货柜落货检测方法还可以包括以下步骤：
对多组相互配对的信号发射单元和信号接收单元分别依次执行发出同步电信号的步骤、开启红外接收端的步骤、以及发射红外检测信号的步骤。
也就是说，在这种实施方式下，包括多组信号发射单元和信号接收单元。对于每组信号收发单元组而言，均包括相互配对且同步的信号发射单元和信号接收单元，并且二者一一对应设置。当用户使用货柜时，每组信号收发单元组均会执行发出同步电信号的步骤、开启红外接收端的步骤、以及发射红外检测信号的步骤；并且，在前一组信号收发单元组执行完上述各项操作步骤之后，下一组信号收发单元组才会执行自身的操作步骤，此时前一组信号收发单元组由于执行完毕所以会关闭。
当全部信号收发单元组均执行完一次上述各项操作步骤之后，可以称为完成一次检测周期。而一次检测周期所持续的时间可以根据需要进行设定，例如一次检测周期可以持续几十或者几百毫秒；但是本公开并不局限于任何特定的持续时间。由于一次检测周期所持续的时间通常非常短，而用户操作货柜的时间相对较长，因此在用户操作货柜的时间内可以持续地轮询进行检测，即，当完成一次检测周期之后再返回重复直至货柜使用完毕。这样，可以更精确和准确地对落货进行检测。另外应当理解的是，与货物落下的时间相比，一次检测周期的时间非常短，所以不会出现落货时刚好所有红外检测信号都处于关闭状态的情况。
例如，如果货柜包括8组信号收发单元组，并且每组信号收发单元组包括1个信号发射单元和1个信号接收单元，则首先对第1组信号收发单元组执行发出同步电信号的步骤、开启红外接收端的步骤、以及发射红外检测信号的步骤。当第1组信号收发单元组执行完毕之后，其会暂时关闭，此时第2组信号收发单元组执行上述操作，以此类推直至第8组信号收发单元组执行完上述操作，此时完成一次检测周期。如果需要持续进行检测，则再次返回第1组信号收发单元组重复进行轮询操作。当然应当理解，以上仅是以示例性实施例的方式，对本公开的方法进行解释和描述，以上并 不对本公开构成任何特别限定，信号收发单元组的个数、检测周期的持续次数和时间均可以根据需要来进行设定。
继续参见图1，在一个实施例中，货柜落货检测方法还可以包括以下步骤：
在第一设定时间内，确定接收到红外检测信号的信号接收单元的数量；
响应于接收到红外检测信号的信号接收单元的数量小于信号接收单元的实际总数量，确定出现货物落下；
响应于接收到红外检测信号的信号接收单元的数量等于信号接收单元的实际总数量，确定无货物落下。
换句话说，根据以上所描述的，在该实施例中，当接收到红外检测信号的信号接收单元的数量小于信号接收单元的实际总数量时，则说明存在信号接收单元未收到红外检测信号，即，存在红外检测信号被落货切割的情况，此时可以确定有货物落下；当接收到红外检测信号的信号接收单元的数量等于信号接收单元的实际总数量时，则说明全部信号接收单元均收到红外检测信号，即，不存在红外检测信号被落货切割的情况，此时可以确定无货物落下。此处应当理解，由于上述红外检测落货的步骤应用了前述提供的信号发射单元和信号接收单元相互同步配对的手段，因此上述检测步骤可以具备更高的检测准确性和检测精准性。
此外应当理解的是，以上所述的第一设定时间可以是根据需要设定的任何合适的时间长度。例如在一个实施例中，第一设定时间可以是用户使用货柜过程中的任意一段时间(比如用户选定货品后弹簧推出货品开始的一段时间)；再例如在一个实施例中，第一设定时间可以是用户触发使用货柜开始的总时间。也就是说，第一设定时间的选择并不局限于某种或某些特定的类型以及特定的持续时间长度，其是可以根据具体情况设定的，本公开并不局限于此。
此外，在一个实施例中，货柜落货检测方法还可以包括以下步骤：
在第二设定时间内，确定是否出现信号接收单元始终未接收到红外检测信号；
响应于出现信号接收单元始终未接收到红外检测信号，认定该组信号发射单元和信号接收单元出现故障。
根据以上实施例的记载，上述实施例提供了信号发射单元和信号接收单元的红外发射端和红外接收端的自检机制。具体来说，如果在用户使用货柜过程中，其中某个或某些信号接收单元未收到红外检测信号，此时实际上可以认为可能出现两种情况：第一种是红外检测信号被落货切割，导致红外接收端未收到信号；另一种可能则是红外发射端和/或红外接收端出现故障，导致未出现红外检测信号。
因此，根据以上实施例，如果在第二设定时间内，出现其中某个或某些信号接收单元始终都未接收到红外检测信号，则可以认为该组信号发射单元和信号接收单元出现故障。这是因为如果出现的是第一种情况，则红外接收端不可能始终都无法接收信号。所以，通过这种设置方式，不但可以对落货进行精准和精确的检测，还可以同时对货柜设备本身进行自检，因此改善并优化了使用和维护操作。
在一个实施例中，与以上关于第一设定时间类似地，上述第二设定时间也可以根据具体需要进行设定，本公开不局限于某种或某些特定的时间。
进一步地，在本公开一个实施例中，货柜落货检测方法还可以包括以下步骤：
响应于红外接收端开启并经过第三设定时间，由信号发射单元向红外接收端发射红外检测信号。
具体而言，在一个实施例中，在信号发射单元向信号接收单元发出同步电信号之后，当红外接收端开启时，可以立即向红外接收端发出红外检测信号，这样操作更加快捷；在以上所述的实施例中，也可以是在红外接收端开启并经过第三设定时间之后，再由信号发射单元向红外接收端发射红外检测信号，这样操作可以给红外发射端预留启动准备时间，也能够使红外接收端开启准备更充分。
在一个实施例中，与以上关于第一设定时间和第二设定时间类似地，上述第三设定时间也可以根据具体需要进行设定，本公开不局限于某种或某些特定的时间。
继续参照图1，在一个实施例中，货柜落货检测方法还可以包括以下步骤：
由信号接收单元向信号发射单元发出自检电信号；
响应于接收到自检电信号，信号发射单元向与其配对的信号接收单元发出同步电信号；
在第四设定时间内，响应于信号发射单元未接收到自检电信号，发出异常警示。
根据以上实施例的记载，上述实施例提供了信号发射单元和信号接收单元的信号发射电路和信号接收电路之间的硬件电路自检机制。也就是说，在执行以上所述的匹配/同步操作之前，首先由信号接收单元向信号发射单元发出自检电信号，以检测信号发射单元和信号接收单元之间的硬件电路是否均能够正常运转。
在一个实施例中，如果接收到自检电信号，则信号发射单元才会向与其配对的信号接收单元发出同步电信号；在另一个实施例中，如果在第四设定时间内信号发射单元未接收到自检电信号，则会发出异常警示，认定信号发射单元和信号接收单元之间的硬件电路可能出现故障。由此可见，本公开的货柜落货方法在用户使用之前还增设了硬件电路自检机制，从而保证后续步骤的正常操作和运行。
在一个实施例中，与以上关于第一设定时间至第三设定时间类似地，上述第四设定时间也可以根据具体需要进行设定，本公开不局限于某种或某些特定的时间。
另外在一个实施例中，上述的硬件电路自检机制可以在货柜首次上电时执行，即，在货柜断电的情况下首次开机时执行；再例如，上述的硬件电路自检机制也可以在每次用户使用货柜时执行。也就是说，硬件电路自检机制的启动时机并不对本公开构成任何特殊限定，可以根据需要进行适当设置。
另外需指出的是，在一个实施例中，本公开中所述的发出自检电信号可以包括发出电脉冲信号或者无线信号；并且本公开中所述的发出同步电信号可以包括发出电脉冲信号或者无线信号。例如，所发出的自检电信号和同步电信号可以是电频脉冲信号；再例如可以是无线电信号。但是应当理解，上述信号并不对本公开构成任何特别限定，可以根据需要选取适当的电信号进行使用。
根据本公开实施例的第二方面，还提供了一种货柜落货检测系统，包 括：
信号发射单元，具有红外发射端；
信号接收单元，与信号发射单元电连接并具有红外接收端；
其中，信号发射单元向与其配对的信号接收单元发出同步电信号；信号接收单元响应于接收到同步电信号开启红外接收端；并且红外发射端向红外接收端发射红外检测信号。
在一个实施例中，货柜落货检测系统包括多组相互配对的信号发射单元和信号接收单元，其中，多组相互配对的信号发射单元和信号接收单元分别依次发出同步电信号、开启红外接收端以及发射红外检测信号。
在一个实施例中，货柜落货检测系统还包括落货检测单元，其中，落货检测单元配置成：
在第一设定时间内，确定接收到红外检测信号的信号接收单元的数量；
响应于接收到红外检测信号的信号接收单元的数量小于信号接收单元的实际总数量，确定出现货物落下；
响应于接收到红外检测信号的信号接收单元的数量等于信号接收单元的实际总数量，确定无货物落下。
在一个实施例中，货柜落货检测系统还包括：
红外检测单元，用于在第二设定时间内，确定是否出现信号接收单元始终未接收到红外检测信号；
故障检测单元，用于响应于出现信号接收单元始终未接收到红外检测信号，认定该组信号发射单元和信号接收单元出现故障。
在一个实施例中，红外发射端响应于红外接收端开启并经过第三设定时间，向红外接收端发射红外检测信号。
在一个实施例中，货柜落货检测系统还包括警示单元，其中，信号接收单元向信号发射单元发出自检电信号；信号发射单元响应于接收到自检电信号向与其配对的信号接收单元发出同步电信号；或者警示单元在第四设定时间内，响应于信号发射单元未接收到自检电信号，发出异常警示。
另外，根据本公开实施例的第三方面，还提供了一种货柜，该货柜包括如上所述的货柜落货检测系统。
以上所描述的装置实施例仅是示意性的，其中所述作为分离部件说明 的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件。基于这样的理解，上述技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
最后应说明的是：以上实施例仅用以说明本公开的技术方案，而非对其限制；尽管参照前述实施例对本公开进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本公开各实施例技术方案的精神和范围。
以上实施方式仅用于说明本公开，而非对本公开的限制。尽管参照实施例对本公开进行了详细说明，本领域的普通技术人员应当理解，对本公开的技术方案进行各种组合、修改或者等同替换，都不脱离本公开技术方案的精神和范围，均应涵盖在本公开的权利要求范围中。
Claims (14)
- 一种货柜落货检测方法，其特征在于，包括：由信号发射单元向与其配对的信号接收单元发出同步电信号；响应于接收到所述同步电信号，所述信号接收单元开启红外接收端；由所述信号发射单元向所述红外接收端发射红外检测信号。
- 根据权利要求1所述的货柜落货检测方法，其特征在于，还包括：对多组相互配对的信号发射单元和信号接收单元分别依次执行发出同步电信号的步骤、开启红外接收端的步骤、以及发射红外检测信号的步骤。
- 根据权利要求1或2所述的货柜落货检测方法，其特征在于，还包括：在第一设定时间内，确定接收到红外检测信号的所述信号接收单元的数量；响应于接收到红外检测信号的所述信号接收单元的数量小于所述信号接收单元的实际总数量，确定出现货物落下；响应于接收到红外检测信号的所述信号接收单元的数量等于所述信号接收单元的实际总数量，确定无货物落下。
- 根据权利要求1或2所述的货柜落货检测方法，其特征在于，还包括：在第二设定时间内，确定是否出现信号接收单元始终未接收到红外检测信号；响应于出现信号接收单元始终未接收到红外检测信号，认定该组信号发射单元和信号接收单元出现故障。
- 根据权利要求1或2所述的货柜落货检测方法，其特征在于，还包括：响应于所述红外接收端开启并经过第三设定时间，由所述信号发射单元向所述红外接收端发射红外检测信号。
- 根据权利要求1所述的货柜落货检测方法，其特征在于，还包括：由所述信号接收单元向所述信号发射单元发出自检电信号；响应于接收到所述自检电信号，所述信号发射单元向与其配对的所述 信号接收单元发出所述同步电信号；在第四设定时间内，响应于所述信号发射单元未接收到所述自检电信号，发出异常警示。
- 根据权利要求6所述的货柜落货检测方法，其特征在于，发出所述自检电信号包括发出电脉冲信号或者无线信号；并且发出所述同步电信号包括发出电脉冲信号或者无线信号。
- 一种货柜落货检测系统，其特征在于，包括：信号发射单元，具有红外发射端；信号接收单元，与所述信号发射单元电连接并具有红外接收端；其中，所述信号发射单元向与其配对的信号接收单元发出同步电信号；所述信号接收单元响应于接收到所述同步电信号开启红外接收端；并且所述红外发射端向所述红外接收端发射红外检测信号。
- 根据权利要求8所述的货柜落货检测系统，其特征在于，所述货柜落货检测系统包括多组相互配对的信号发射单元和信号接收单元，其中，多组相互配对的信号发射单元和信号接收单元分别依次发出同步电信号、开启红外接收端以及发射红外检测信号。
- 根据权利要求8或9所述的货柜落货检测系统，其特征在于，还包括落货检测单元，其中，所述落货检测单元配置成：在第一设定时间内，确定接收到红外检测信号的所述信号接收单元的数量；响应于接收到红外检测信号的所述信号接收单元的数量小于所述信号接收单元的实际总数量，确定出现货物落下；响应于接收到红外检测信号的所述信号接收单元的数量等于所述信号接收单元的实际总数量，确定无货物落下。
- 根据权利要求8或9所述的货柜落货检测系统，其特征在于，还包括：红外检测单元，在第二设定时间内，确定是否出现信号接收单元始终未接收到红外检测信号；故障检测单元，响应于出现信号接收单元始终未接收到红外检测信号， 认定该组信号发射单元和信号接收单元出现故障。
- 根据权利要求8或9所述的货柜落货检测系统，其特征在于，所述红外发射端响应于所述红外接收端开启并经过第三设定时间，向所述红外接收端发射红外检测信号。
- 根据权利要求8所述的货柜落货检测系统，其特征在于，还包括警示单元，其中，所述信号接收单元向所述信号发射单元发出自检电信号；所述信号发射单元响应于接收到所述自检电信号向与其配对的所述信号接收单元发出所述同步电信号；或者所述警示单元在第四设定时间内，响应于所述信号发射单元未接收到所述自检电信号，发出异常警示。
- 一种货柜，其特征在于，包括权利要求8至13中任一项所述的货柜落货检测系统。
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| DE102007059565B4 (de) * | 2007-12-11 | 2010-01-07 | Leuze Lumiflex Gmbh + Co. Kg | Lichtgitter und Verfahren zu dessen Betrieb |
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