CN110751778B - Method and device for judging state of goods channel of automatic vending equipment - Google Patents
Method and device for judging state of goods channel of automatic vending equipment Download PDFInfo
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- CN110751778B CN110751778B CN201911043827.XA CN201911043827A CN110751778B CN 110751778 B CN110751778 B CN 110751778B CN 201911043827 A CN201911043827 A CN 201911043827A CN 110751778 B CN110751778 B CN 110751778B
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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
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- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
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Abstract
The invention relates to a method for judging the state of a goods channel of automatic vending equipment, which comprises the following steps of sending a goods channel driving signal to enable a motor on the goods channel to rotate, and acquiring the current value flowing through the motor to obtain the current state of the motor; detecting whether an article is pushed out from the goods channel or not, and returning an article detection result; monitoring whether a set motor feedback signal appears in the cargo channel motor within the set time; and obtaining the current cargo channel state according to the returned motor feedback signal, the article detection result and the collected current state of the motor. The invention also relates to a device for realizing the method. The method and the device for judging the state of the goods channel of the automatic vending equipment have the following beneficial effects: the state of a fault goods channel can be accurately judged, immediate automatic refund can be carried out, the refund time can be reduced, and the user experience is improved; and meanwhile, the labor cost for maintaining the operation is saved.
Description
Technical Field
The invention relates to automatic vending equipment, in particular to a method and a device for judging the state of a goods channel of automatic vending equipment.
Background
At present, the automatic vending machine or equipment industry shows a fierce development trend, and the application of the unmanned self-service mode in different fields and different industries promotes an intelligent and large-scale operation mode. Vending machines have become a part of people's lives, and as this new retail scenario develops, it becomes a completely new business model. Once the vending machine becomes a commercial device and is put into use in a large scale, the fault detection tolerance of the vending machine is very high, and the failure or misjudgment of the failure can cause meaningless intervention of vending personnel and waste of manpower and material resources. For example, a failure occurs in a goods channel of a current vending machine or equipment, when a customer needs to refund, the customer reports the failure by taking a picture and calling a customer service telephone, a platform or a system is required to refund, and due to the lack of a means for automatically judging the state of the goods channel, a worker needs to be sent to a site to confirm and maintain. Thus, the refund time is longer and the demand for service response is higher. On one hand, the user experience of the customer is poor, and on the other hand, the running cost of the whole system or platform is high due to the fact that a large amount of manpower needs to be sent to the site.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and an apparatus for determining the status of a vending machine lane with good user experience and low operation cost, aiming at the above-mentioned defects of poor user experience and high operation cost in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for judging the state of a goods channel of automatic vending equipment is constructed, and comprises the following steps:
sending a goods channel driving signal to enable a motor on a goods channel to rotate, and meanwhile, collecting a current value flowing through the motor by taking T1 seconds which is more than the time of one rotation of the motor as set time and T milliseconds as sampling intervals when the goods channel motor starts to rotate to obtain a current state of the motor;
starting an infrared detection unit of the goods channel by taking the set time T1 as a starting period, detecting whether articles are pushed out of the goods channel or not, and returning an article detection result;
monitoring whether a set motor feedback signal appears in the cargo way motor within the set time or not by taking the set time T1 as a monitoring period;
obtaining the current goods channel state according to the returned motor feedback signal, the article detection result and the collected current state of the motor;
wherein the current value of the cargo way motor is obtained by a current sensor arranged on a motor coil or a power supply circuit of the coil; the infrared detection unit is arranged below a goods outlet of the goods passage; the motor feedback signal is a pulse signal with a rising edge, which is sent out when the motor of the motor cargo track rotates for one circle; the current value, the article detection result and the motor feedback signal of the goods channel motor are sent to the control unit of the automatic vending equipment through the motor control circuit of the automatic vending equipment to be processed and judged.
Still further, the method comprises the following steps:
and starting timing after the motor driving signal is sent out, and stopping outputting the motor driving signal when the set time T1 is reached.
Furthermore, in the process of collecting the motor driving current, when the motor state is found to be in an overcurrent or undercurrent state, the motor driving signal is stopped to be output.
Furthermore, the motor driving current value is collected according to the sampling interval in the set time T1, the average value of the motor driving current collected at present is stored and synchronously calculated, the average value obtained each time is compared with the set current value, and when the average value is continuously set for times less than the lowest value of the normal current or more than the maximum value of the normal current, the motor is judged to be in an undercurrent or overcurrent state.
Furthermore, the average value of the collected multiple motor driving current values is taken as the motor driving current value and is compared with the set current range to obtain the state of the motor driving current; the motor drive current states include an undercurrent, a normal, and an overcurrent state.
Furthermore, the infrared article detection unit is automatically closed after being opened for a set time T1, and when an article blocks the optical signal during the opening period, the article is judged to be pushed out; otherwise, judging that no article is pushed out.
Further, the motor feedback signal includes a rising edge, a low level and a high level occurring within the above-mentioned set time T1; when the motor feedback signal has a rising edge, judging that the motor rotates in place, and when the motor feedback signal is at a low level, judging that the motor does not rotate in place; and when the motor feedback signal is at a high level, the motor feedback signal line is disconnected.
Still further, the lane status includes: normal, lack goods, goods are too much, the goods is said and is blocked, mains voltage is unusual, the drive is disconnected and motor feedback signal cuts off.
The invention also relates to a device for realizing the method for judging the state of the goods channel of the automatic vending equipment, which comprises the following steps:
the driving signal generating module: the system is used for sending a goods channel driving signal to enable a motor on a goods channel to rotate, and meanwhile, when the goods channel motor starts to rotate, the time T1 seconds which is longer than the time when the motor rotates for one circle is taken as the set time, and the value of current flowing through the motor is collected by taking T milliseconds as sampling intervals to obtain the current state of the motor;
the article push-out detection module: the infrared detection unit is used for starting the goods channel by taking the set time T1 as a starting period, detecting whether articles are pushed out of the goods channel or not and returning the article detection result;
a motor feedback signal acquisition module: the motor feedback circuit is used for monitoring whether a set motor feedback signal appears in the cargo track motor within the set time by taking the set time T1 as a monitoring period;
goods way state judgment module: the motor is used for obtaining the current goods channel state according to the returned motor feedback signal, the goods detection result and the collected current state of the motor;
wherein the current value of the cargo way motor is obtained by a current sensor arranged on a motor coil or a power supply circuit of the coil; the infrared detection unit is arranged below a goods outlet of the goods passage; the motor feedback signal is a pulse signal with a rising edge, which is sent out when the motor of the motor cargo track rotates for one circle; the current value, the article detection result and the motor feedback signal of the goods channel motor are sent to the control unit of the automatic vending equipment through the motor control circuit of the automatic vending equipment to be processed and judged.
Still further, still include:
a timing module: the motor driving circuit is used for starting timing after sending out a motor driving signal, and stopping outputting the motor driving signal when the set time T1 is reached; and
a protection module: and the motor driving circuit is used for stopping outputting the motor driving signal when the motor state is found to be in an overcurrent or undercurrent state in the process of collecting the motor driving current.
The method and the device for judging the state of the goods channel of the automatic vending equipment have the following beneficial effects: because the current detection circuit is added in the power supply control circuit of the goods channel control panel matrix motor of the automatic vending equipment, when the motor normally rotates, blocks and does not rotate, the current values detected by the current detection circuit are different, and in addition, different states of a plurality of different parameters such as motor feedback signals, object push-out detection results and the like can be very accurately judged according to judgment or table lookup of a plurality of related steps, the fault type of the goods channel in each abnormal state can be very accurately judged, so that the state of the fault goods channel can be accurately judged, when the state is uploaded to a service end (for example, a server connected with the automatic vending equipment through a network), the service end can immediately and automatically refund according to the fault type or state, the refund time can be reduced, and the user experience is improved; and meanwhile, the labor cost for maintaining the operation is saved.
Drawings
FIG. 1 is a flow chart of a method in an embodiment of a method and apparatus for determining a status of a lane of a vending machine according to the present invention;
FIG. 2 is a flow chart for obtaining motor current in the embodiment;
FIG. 3 is a flow chart of the embodiment for obtaining the result of the article detection;
FIG. 4 is a table showing the correspondence between motor current, article ejection and motor feedback signal states and lane states in the embodiment;
fig. 5 is a schematic structural view of the device in the embodiment.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, in the embodiment of the method and the device for determining the state of the vending machine channel, the method for determining the state of the vending machine channel includes the following steps:
step S11 outputs a motor drive signal: in this step, a control unit of the vending machine (i.e. a unit for controlling the operation and data exchange of the entire vending machine, such as a main control board or the like) sends a channel driving signal to rotate a motor on a channel, and at the same time, a time T1 seconds, which is longer than one rotation of the motor, is set when the channel motor starts to rotate, and a current value flowing through the motor is collected at sampling intervals of T milliseconds, so as to obtain a current state of the motor. Generally, in a vending machine, a user usually selects an article and pays by selecting an existing payment method (e.g., a payment treasure or WeChat or cash), after the payment is confirmed, the system notifies the vending machine to push out a specified article, and after receiving the instruction, the vending machine selects a channel where the article is located, outputs a driving signal, so that a channel motor of the channel rotates for a specified number of turns or positions, pushes out an article, and the article can enter or enter a shipping area with the assistance of other structures for being taken away by the user, thereby realizing the vending of the article. In this embodiment, a method for determining the state of a cargo track will be described by taking the example of pushing out a single commodity. Of course, in a specific usage scenario, a user may purchase more than one product, and in this case, repeating the steps in the embodiment may realize the determination of the status of one or more channels when pushing or purchasing multiple products. In addition, in the present embodiment, it is common that the goods-way motor rotates one circle to push out one article, so the set time T1 in the present embodiment is generally the distance or stroke of pushing out one article, which is usually a second unit, that the goods-way motor needs to rotate. Obviously, the current determination for the track motor cannot be based on this unit, and the sampling interval t is usually in milliseconds in order to more accurately obtain the current of the track motor. It should be noted that the setting time T and the sampling interval T are set and stored in advance, and may be regarded as constants.
If the step S12 does not exceed the set time, if yes, the process jumps to the step S16; otherwise, the next step is executed. That is, when the driving signal is generated and applied to the track motor, the timer is started, and when the timer reaches the set time T1, for example, the timer is overflowed, it is determined that the set time T1 is exceeded.
Step S13 obtains a motor current value according to a set sampling interval, and obtains a motor current state: in the step, according to a set sampling interval t, sampling the current supplied to the cargo channel motor to obtain the current value of the cargo channel motor, and comparing the obtained current value with the normal motor current value to obtain the current state of the cargo channel motor; the current values can be compared one by one, or the average value of the current values of the goods channel motor sampled several times or all the current values can be taken and then compared with the current value of the normal motor by the average value, so that the current state of the motor in a period of time or a driving period can be obtained. For the case of the present embodiment, the motor current states include three types, i.e., overcurrent, normal, and undercurrent.
Step S14 monitors the article ejection, and obtains the article ejection state: in this step, as described above, the set time T1 is used as the start cycle, the infrared detection unit of the cargo channel is started, whether an article is pushed out from the cargo channel is detected, and the article detection result is returned; that is, when the driving signal is provided to the cargo way motor, the infrared detection unit corresponding to the cargo way is turned on, and the infrared detection unit generally includes a pair of infrared transmitting tubes and infrared receiving tubes which are installed at both sides of the cargo way, respectively, and are opposed to each other. When the goods are pushed out from the goods passage, the falling process of the goods can shield the infrared rays emitted by the infrared emission tube, so that the infrared receiving tube cannot receive the light rays within a certain time, and a positive or negative pulse signal can appear at the signal output end of the infrared receiving tube. If the pulse signal is captured, it is determined that the goods channel has the goods to be pushed out, and if the pulse signal is not captured, it is determined that the goods channel has no goods to be pushed out.
Step S15, monitoring the motor feedback signal, and determining the motor in-place state: in this step, the set time T1 is used as a monitoring period to monitor whether a set motor feedback signal appears in the set time of the cargo track motor; the motor feedback signal is a pulse signal with a rising edge, which is sent out when the motor of the motor cargo track rotates for one circle; if the signal is received, the motor is considered to rotate in place; if the signal is not received within a set time, the motor is deemed not to be rotating in position. It should be noted that, in the present embodiment, the above steps S13-15 are performed in parallel, and for convenience of description only, the above three actions are arranged in the above order in the present embodiment.
Step S16 stops outputting the motor drive signal: in this step, since the set time T1 has come. And stopping outputting the motor driving signal, and simultaneously stopping collecting the current value of the goods way motor, closing the infrared detection unit and stopping detecting a motor feedback signal because the goods way motor does not rotate any more.
Step S17 obtains the motor current state. In the step, the current goods channel state is obtained according to the returned motor feedback signal, the goods detection result and the collected current state of the motor; in other words, the current state of the goods channel is obtained by collecting the current value, the pushing state of the goods and the in-place state of the motor in the step. That is, in the present embodiment, a state of a cargo way having a plurality of possibilities, a state value obtained by the above-described collected current value, the article push-out state, and the motor in place, is compared with a table set in advance or a table is looked up.
Wherein the current value of the cargo way motor is obtained by a current sensor arranged on a motor coil or a power supply circuit of the coil; the infrared detection unit is arranged below a goods outlet of the goods passage; the current value, the article detection result and the motor feedback signal of the goods channel motor are sent to the control unit of the automatic vending equipment through the motor control circuit of the automatic vending equipment to be processed and judged.
Fig. 2 shows specific steps of the present embodiment for obtaining the current state of the motor by determining the collected current value of the motor, including:
step S21 collects the current value of the motor: in this step, the current motor current value is collected, and this step may be any one of the collection of the motor current values, that is, any one of the motor current value collection actions.
Step S22 obtains the current average value of the current motor: in this step, the current values of all the motors obtained in the current state judgment of the cargo way are subjected to average calculation to obtain the average value of the current values of all the motors in the current state judgment of the cargo way. It is worth mentioning that in most cases, the average value of the motor current obtained in this step is not the current average value finally used for judging the state of the cargo way. For example, even if the motor current value is acquired for the first time in the set time T1, the average value thereof needs to be calculated, and it is obvious that the average value at this time is the acquired data itself. Although the arrangement is relatively complicated in calculation, the obvious advantage is that the over-current or under-current of the motor can be found as soon as possible, and the over-current or under-current of the motor does not need to be found after a set time T1, so that measures can be taken as soon as possible. Because the over-current or under-current of the motor may not only be a problem of consuming energy, the long abnormal condition may bring irreversible damage to the hardware of the motor.
If the step S23 is not less than the minimum value of the normal current value of the motor, if so, executing a step S26; otherwise, executing the next step.
If the step S24 is not larger than the maximum value of the normal current value of the motor, if so, executing a step S27; otherwise, the next step is executed. It should be noted that the normal current value of the motor is a current interval, which is known and stored in advance. What this step and last step do is that the value of both ends of this interval, are used for comparing with above-mentioned current average value separately, judge the position where this current average value locates on the above-mentioned interval.
Step S25 motor current is normal: in this step, since the average value of the motor current for comparison is within the interval of the normal current value of the motor, it is determined that the motor current is currently normal.
Step S26 motor underflow: in this step, the current undercurrent of the motor is judged because the current average value is smaller than the minimum value of the normal value of the motor current.
Step S27 motor overcurrent: in this step, the current overcurrent of the motor is judged because the current average value is larger than the maximum value in the normal current values of the motor.
In this embodiment, in one case, the above steps are performed after each current value acquisition. And if the motor state is found to be in an overcurrent or undercurrent state in the process of collecting the motor driving current, stopping outputting the motor driving signal no matter whether the set time T1 is reached. Collecting motor driving current values according to sampling intervals in set time T1, storing and synchronously calculating the average value of the motor driving current currently collected, comparing the average value obtained each time with a set current value, and judging that the motor is in an undercurrent or overcurrent state when the average value is continuously set for times less than the lowest value of normal current or more than the maximum value of the normal current. As mentioned before, this has the advantage that damage to the motor from these abnormal conditions can be stopped immediately.
In another case, the above steps are performed after each current value acquisition. However, the motor current state for judging the cargo way state is judged and obtained only after the set time T1, and the judgment method is consistent with the above method, and the average value of the collected multiple motor driving current values is taken as the motor driving current value and is compared with the set current range to obtain the state of the motor driving current; the motor drive current states include an undercurrent, a normal, and an overcurrent state.
Fig. 3 shows a flow of acquiring the result of article detection. In fig. 3, the process includes the following steps:
step S31 turns on the infrared detection unit: in this step, the infrared detection unit is turned on to start its operation.
If the pulse signal is not present in step S32, if so, the next step is executed, otherwise, the process goes to step S33.
Step S33 has an article pushed out: in this step, it is determined that there is an article entering the discharge area from the lane, i.e., that there is an article being pushed out.
Step S34 no item is pushed out: in this step, it is determined that no article has entered the discharge area from the lane, i.e., no article has been pushed out.
It should be noted that, in fig. 3, except that the step of turning on the infrared detection unit is performed only when the set time T1 starts, the step S32 is continuously performed until the infrared detection unit is turned off before it is turned off.
In this step, the motor feedback signal includes a rising edge, a low level and a high level occurring within the above-mentioned set time T1; when the motor feedback signal has a rising edge, judging that the motor rotates in place, and when the motor feedback signal is at a low level, judging that the motor does not rotate in place; and when the motor feedback signal is at a high level, the motor feedback signal line is disconnected. And the lane status includes: normal, lack goods, goods are too much, the goods is said and is blocked, mains voltage is unusual, the drive is disconnected and motor feedback signal cuts off.
As an example, fig. 4 shows a comparison table of the states of the above parameters and the state of the cargo way in the present embodiment. After the states of the parameters are known, the current state of the goods channel can be obtained through table lookup or a specific judging step.
In an example of the embodiment, when the goods way motor rotates for one circle, the motor feedback signal can generate a level change of a rising edge, the motor feedback signal is at a low level when the goods way motor does not rotate to the right position, and the signal is changed from the low level to a high level when the goods way motor rotates to the right position; when the feedback signal line falls off or is disconnected, the level of the motor feedback signal detected by the goods channel control board is high level, so that the conditions of in-place rotation and falling-off of the feedback signal line can be distinguished by detecting whether the high level changes.
For the current detection of the cargo channel motor, the cargo channel motor is firstly rotated, then the motor current N2(N2 is greater than 2, the larger the value of N2 is, the more accurate the obtained average value is) is continuously collected for several times, the maximum value and the minimum value are removed (the average value can also be directly obtained), and the average value of the current values of (N2-2) times is the current value read at this time. Averaging the currents every N1(0< N1<1000) ms during the set time T1;
the range of current averages was then compared as follows:
the undercurrent is more than or equal to 0mA and less than or equal to 200mA,
200mA < normal ≤ 1500mA
1500mA < overcurrent ≤ 4000mA
When the motor voltage is detected to be in the overcurrent range within continuous N4(N4>100) ms, the motor is judged to be overcurrent, and the state of the cargo channel is motor locked-rotor at the moment. In this embodiment, the motor is stopped when the current is detected to be an overcurrent or an undercurrent.
For the detection of the feedback signal of the motor, after the motor starts to rotate, the feedback signal should be at a low level when the motor is not in place, and at a high level when the motor is in place, and the motor can be judged to rotate for one circle only when rising edge jump from the low level to the high level is detected. The high level is always detected when the motor starts to rotate, which indicates that the feedback signal wire falls off, and when the signal wire falls off, the feedback signal detected by the goods way control board is always high level. The feedback signal of the motor is always detected to be low level within the set time, and if the motor is not in place, the motor may be blocked, or the motor is more than objects and rotates slowly, so that the motor does not rotate for one circle within the set time, and the specific situation can be judged by combining current detection.
As can be seen from the table of fig. 4, the lane status that can be detected in the present embodiment includes:
blocking the motor of the cargo channel: when the motor rotates, if the motor current is detected to be in an overcurrent range within N4(N4>100) ms, the motor is directly judged to be locked (the motor cannot rotate due to articles);
the motor of the cargo way is locked up and the feedback signal line of the motor drops: when the motor rotates, the overcurrent of the current of the motor is detected, and the feedback signal is always high level, which indicates that the motor of the cargo channel is locked, and the feedback signal line of the motor falls off;
abnormal power supply of the motor: when the motor rotates, the motor current N5 (N5 <200) mA is detected, namely the motor circuit is disconnected, which indicates that the motor is not connected with a power supply or the motor power supply falls off or the motor power supply is not output;
too many or too heavy items in the lane result in slow motor rotation: when the current detection of the motor is normal, the feedback signal is always low, and the infrared detection unit does not detect an article, the motor does not rotate for one circle within the set time, because the speed of the motor becomes slow;
the feedback signal line of the motor falls off or is disconnected: when the current of the motor is detected normally, the feedback signal is always high, and the optical coupling plate detects an article, the shipment is successful, but the feedback signal line of the motor falls off;
the motor idles and a feedback signal falls off: when the current of the motor is detected normally, the feedback signal of the motor is always high, and the infrared detection unit does not detect the articles, which indicates that the motor rotates, and when no articles enter the goods taking area, the reason is that the motor idles (does not drive the conveyor belt), and the feedback signal line falls off;
idling of a cargo channel motor: when the current of the motor is detected to be normal, and the level change of a rising edge fed back by the motor is detected, but the infrared detection unit does not detect an article, the motor rotates in place, but no article enters a goods taking area, and the motor idles;
successful shipment (lane normal): when the motor current is detected to be normal, the motor feeds back a signal and then has level change of a rising edge, and if an object is detected, the goods delivery is successful, and the goods channel is normal.
The invention also relates to a device for realizing the method for judging the goods channel state of the automatic vending equipment, and a structural schematic diagram of the device is shown in figure 5. In fig. 5, the apparatus includes:
the driving signal generating module 1 is used for sending a goods channel driving signal to enable a motor on a goods channel to rotate, and meanwhile, when the goods channel motor starts to rotate, the time T1 seconds which is longer than the time when the motor rotates for one circle is taken as a set time, and the value of current flowing through the motor is collected by taking T milliseconds as a sampling interval to obtain the current state of the motor;
the article pushing detection module 2 is used for starting the infrared detection unit of the cargo channel by taking the set time T1 as a starting period, detecting whether an article is pushed out of the cargo channel or not, and returning an article detection result;
the motor feedback signal obtaining module 3 is configured to monitor whether a set motor feedback signal occurs in the set time of the cargo track motor with the set time T1 as a monitoring period;
the goods channel state judging module 4 is used for obtaining the current goods channel state according to the returned motor feedback signal, the article detection result and the collected current state of the motor;
the timing module 5 is used for starting timing after sending out a motor driving signal, and stopping outputting the motor driving signal when the set time T1 is reached; and
and the protection module 6 is used for stopping outputting the motor driving signal when the motor state is found to be in an overcurrent or undercurrent state in the process of collecting the motor driving current.
Wherein the current value of the cargo way motor is obtained by a current sensor arranged on a motor coil or a power supply circuit of the coil; the infrared detection unit is arranged below a goods outlet of the goods passage; the motor feedback signal is a pulse signal with a rising edge, which is sent out when the motor of the motor cargo track rotates for one circle; the current value, the article detection result and the motor feedback signal of the goods channel motor are sent to the control unit of the automatic vending equipment through the motor control circuit of the automatic vending equipment to be processed and judged.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A method for judging the state of a goods channel of automatic vending equipment is characterized by comprising the following steps:
sending a goods channel driving signal to enable a goods channel motor to rotate, and meanwhile, collecting the current value flowing through the goods channel motor by taking T1 seconds which are longer than the time of one rotation of the goods channel motor as set time and T milliseconds as sampling intervals when the goods channel motor starts to rotate to obtain the current state of the motor;
starting an infrared detection unit of the goods channel by taking the set time T1 as a starting period, detecting whether articles are pushed out of the goods channel or not, and returning an article detection result;
monitoring whether a set motor feedback signal appears in the cargo way motor within the set time or not by taking the set time T1 as a monitoring period;
according to the returned motor feedback signal, the article detection result and the collected current state of the motor, obtaining the current goods channel state through table lookup and uploading the current goods channel state to a server; the lane status includes: the method comprises the following steps of (1) normally, lack of goods, excessive goods, blockage of a goods channel, abnormal power supply voltage, disconnection of a drive and disconnection of a motor feedback signal;
wherein the value of the current flowing through the cargo way motor is obtained by a current sensor arranged on a coil of the cargo way motor or a power supply circuit of the coil; the infrared detection unit is arranged below a goods outlet of the goods passage; the motor feedback signal is a pulse signal with a rising edge sent out when the goods channel motor rotates for one circle; the current value of the motor flowing through the goods channel, the article detection result and the motor feedback signal are sent to the control unit of the automatic vending equipment through the motor control circuit of the automatic vending equipment to be processed and judged.
2. The method for determining the status of a vending apparatus lane according to claim 1, further comprising the steps of:
and starting timing after the motor driving signal is sent out, and stopping outputting the motor driving signal when the set time T1 is reached.
3. The method according to claim 1, wherein in the process of collecting the value of the current flowing through the motor of the vending machine, when the current state of the motor is found to be in an overcurrent or undercurrent state, the output of the motor driving signal is stopped.
4. The method as claimed in claim 3, wherein the current value of the motor flowing through the channel is collected at sampling intervals during a set time T1, the average value of the current value of the motor flowing through the channel is stored and calculated synchronously, the average value obtained each time is compared with the set current value, and when the average value is continuously set for a number of times less than the lowest value of the normal current or greater than the maximum value of the normal current, the current state of the motor is determined to be in an undercurrent or overcurrent state.
5. The method for judging the state of the goods channel of the automatic vending equipment according to claim 1, characterized in that the current state of the motor is obtained by taking the average value of the collected current values of a plurality of motors flowing through the goods channel as the driving current value of the motor and comparing the driving current value with the set current range; the motor current states include an undercurrent, a normal and an overcurrent state.
6. The method as claimed in claim 1, wherein the infrared article detecting unit is automatically turned off after a set time T1 for opening, and if an article blocks its light signal during the opening period, it is determined that an article is pushed out; otherwise, judging that no article is pushed out.
7. The method as claimed in claim 1, wherein the motor feedback signal includes rising edge, low level and high level in the set time T1; when the motor feedback signal has a rising edge, judging that the motor rotates in place, and when the motor feedback signal is at a low level, judging that the motor does not rotate in place; and when the motor feedback signal is at a high level, the motor feedback signal line is disconnected.
8. The utility model provides an automatic sell judgement device of equipment goods way state which characterized in that includes:
the driving signal generating module: the system is used for sending a goods channel driving signal to enable a goods channel motor to rotate, and meanwhile, when the goods channel motor starts to rotate, the time T1 seconds which is longer than the time when the goods channel motor rotates for one circle is taken as the set time, and the value of the current flowing through the goods channel motor is collected by taking T milliseconds as the sampling interval to obtain the current state of the motor;
the article push-out detection module: the infrared detection unit is used for starting the goods channel by taking the set time T1 as a starting period, detecting whether articles are pushed out of the goods channel or not and returning the article detection result;
a motor feedback signal acquisition module: the motor feedback circuit is used for monitoring whether a set motor feedback signal appears in the cargo track motor within the set time by taking the set time T1 as a monitoring period;
goods way state judgment module: the motor current state acquisition unit is used for acquiring a current goods channel state through table look-up according to the returned motor feedback signal, the goods detection result and the acquired motor current state and uploading the current goods channel state to the server; the lane status includes: the method comprises the following steps of (1) normally, lack of goods, excessive goods, blockage of a goods channel, abnormal power supply voltage, disconnection of a drive and disconnection of a motor feedback signal;
wherein the value of the current flowing through the cargo way motor is obtained by a current sensor arranged on a coil of the cargo way motor or a power supply circuit of the coil; the infrared detection unit is arranged below a goods outlet of the goods passage; the motor feedback signal is a pulse signal with a rising edge sent out when the goods channel motor rotates for one circle; the current value of the motor flowing through the goods channel, the article detection result and the motor feedback signal are sent to the control unit of the automatic vending equipment through the motor control circuit of the automatic vending equipment to be processed and judged.
9. The apparatus of claim 8, further comprising:
a timing module: the motor driving circuit is used for starting timing after sending out a motor driving signal, and stopping outputting the motor driving signal when the set time T1 is reached; and
a protection module: and the motor driving circuit is used for stopping outputting the motor driving signal when the current state of the motor is found to be in an overcurrent or undercurrent state in the process of collecting the current value of the motor flowing through the cargo channel.
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| CN111612969A (en) * | 2020-04-22 | 2020-09-01 | 上海趣致网络科技股份有限公司 | Control device of goods way motor |
| CN111815850A (en) * | 2020-05-27 | 2020-10-23 | 重庆乐吧便捷科技有限公司 | Automatic sell quick-witted trouble and report system |
| CN112002061A (en) * | 2020-06-16 | 2020-11-27 | 深圳市智莱科技股份有限公司 | Method and device for judging article distribution state of automatic vending equipment |
| CN112017356A (en) * | 2020-08-26 | 2020-12-01 | 深圳市智莱科技股份有限公司 | Vending machine shipment detection method, vending machine and readable storage medium |
| CN115294689B (en) * | 2022-08-02 | 2023-07-07 | 广东便捷神科技股份有限公司 | Shipment fault decision system based on vending machine self-checking |
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| JP2001109950A (en) * | 1999-10-06 | 2001-04-20 | Sanyo Electric Co Ltd | Automatic vending machine |
| CN101446813A (en) * | 2008-12-23 | 2009-06-03 | 东南大学 | Commodity feeding device and method for vending machine |
| CN108154599A (en) * | 2017-12-25 | 2018-06-12 | 北京康得新创科技股份有限公司 | Self checking method and device, the machine for vending of machine for vending |
| CN109064633A (en) * | 2018-07-06 | 2018-12-21 | 众享随行（深圳）科技有限公司 | Vending machine goes out pallet piling up method, vending machine, computer readable storage medium and system |
| CN109147181A (en) * | 2018-09-30 | 2019-01-04 | 湖南金码智能设备制造有限公司 | A kind of automatically vending system of anti-theft type, out pallet piling up method and test method |
| CN109493509A (en) * | 2018-12-21 | 2019-03-19 | 惠州臻享云科技有限公司 | A kind of control system of automatic vending machine and its control method |
| CN209199214U (en) * | 2019-01-24 | 2019-08-02 | 昆山毅普腾自动化技术有限公司 | Small-sized automatic vending machine control system |
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