Elevator start times measuring device

Abstract

The present invention discloses a device for measuring the number of elevator starts, wherein a door zone sensor is composed of a detected body installed in a shaft and a detection body installed on a car, and is used to detect the door zone signal when the elevator car enters and leaves the door zone; a waveform analysis unit is used to analyze the door zone signal and output the movement stage of the elevator car during a door zone start-up process; a speed calculation unit is used to calculate the moving speed of the elevator car during the movement stage; a judgment unit is used to judge whether the elevator has completed a start-up according to the movement stage and the moving speed corresponding to the movement stage; and a counting unit determines whether to add 1 to the counting result according to the judgment result of the judgment unit. The device for measuring the number of elevator starts of the present invention does not need to add a new sensor, and can measure the number of elevator starts at a low cost, conveniently and quickly without relying on the relevant information of the elevator control panel.

Description

Technical Field

[0001] The invention relates to elevator control technology, in particular to an elevator start times measuring device. Background Art

[0002] The number of elevator starts is an important parameter for evaluating the actual use of the elevator after the elevator is installed and put into use. At present, the number of elevator starts is mostly from the elevator control panel. For example, Document 1 (CN201410301206.8) uses the elevator operation record information when calculating the number of elevator starts as the maintenance requirement of the elevator. However, the start-up number measuring device of Document 1 relies on the elevator operation record information from the elevator control panel for the statistics of the number of elevator starts, which is not applicable to application scenarios where relevant information cannot be obtained from the elevator control panel (such as: Company A needs to count and display the elevator usage of other companies such as the number of starts).

[0003] In response to this problem, Document 2 (CN201880096092.4) proposes to use an elevator start-time measuring device that includes an acceleration sensor and is magnetically fixed to the elevator car. When the car acceleration measured by the acceleration sensor includes a positive acceleration segment and a negative acceleration segment (the acceleration must exceed the threshold and last for a certain period of time), the elevator is considered to have completed a start, and the number of elevator starts is increased by 1. Although this solution overcomes the disadvantage of Document 1 that it needs to obtain relevant information from the control panel, it has the following shortcomings:

[0004] a. It is necessary to add a dedicated acceleration sensor, which increases the cost, and the sensor needs to be powered to meet its requirements;

[0005] b. Since it is necessary to determine whether there are positive acceleration segments and negative acceleration segments in the detection results of the acceleration sensor, and there are two thresholds of acceleration magnitude and duration in the judgment, the rated acceleration will be different for elevators of different specifications, and usually different rated speeds correspond to different rated accelerations. Obviously, the acceleration magnitude threshold is closely related to the rated acceleration, and the rated acceleration cannot be known in advance for an application such as Company A, which makes the setting of the acceleration magnitude threshold a problem. It can only be done through actual on-site testing, and then the threshold can be set on-site according to the test results. This will obviously bring a lot of inconvenience to on-site practice, and improper setting may also cause misjudgment;

[0006] c. When judging whether there are positive acceleration segments and negative acceleration segments in the detection results of the acceleration sensor, it cannot be correctly judged when running in special modes such as maintenance, which will cause great errors in the statistical results.

[0007] Therefore, how to measure the number of elevator starts at low cost and conveniently without relying on the relevant information of the elevator control panel has become a problem that needs to be solved. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide an elevator start number measuring device, which can measure the elevator start number at low cost, conveniently and quickly without relying on relevant information of the elevator control panel.

[0009] In order to solve the above technical problems, the present invention provides an elevator start number measuring device, which comprises:

[0010] The door zone sensor is composed of a detected body installed in the hoistway and a detection body installed on the car, and is used to detect the door zone signal when the elevator car enters and leaves the door zone;

[0011] A waveform analysis unit, used to analyze the door zone signal output by the door zone sensor, and output the movement stage of the elevator car during a door zone startup process;

[0012] a speed calculation unit, for calculating the moving speed of the elevator car during the movement phase;

[0013] a judging unit, configured to judge whether the elevator has completed one start according to the motion stage output by the waveform analyzing unit and the moving speed corresponding to the motion stage output by the speed calculating unit;

[0014] The counting unit determines whether to add 1 to the counting result according to the judgment result of the judgment unit.

[0015] Preferably, the detection body includes an upper detector and a lower detector arranged on the elevator car along the shaft direction, and the waveform analysis unit analyzes at least two different forward and backward movement stages of the elevator car in a first movement stage and a second movement stage during a door area startup process based on a combination of detection signals output by the upper detector and the lower detector.

[0016] Preferably, the judgment unit determines whether a new first motion stage is received based on the second motion stage output by the waveform analysis unit, and when the judgment result is yes, further determines the relationship between the moving speed corresponding to the new first motion stage and the corresponding threshold to determine whether the elevator has completed a start.

[0017] Preferably, the door zone starting process is a process in which the elevator car starts to stop in the door zone of the stop floor and accelerates to leave the door zone of the stop floor, and the movement stages included in the door zone starting process are the stop section located in the door zone stop area, the door zone rear section except the stop section in the door zone, and the door zone leaving section after leaving the door zone, which are connected in sequence. Or,

[0018] The door area starting process is the process of the elevator car starting from the door area of ​​the current stop floor to accelerating and finally decelerating to stop at the next stop floor. The movement stages included in the door area starting process are the stop section located in the door area stop area of ​​the current stop floor, the rear section of the door area located in the door area of ​​the current stop floor except the stop section, the leaving door section after leaving the door area, the front section of entering the door area before entering the door area of ​​the next stop floor, and the front section of the door area that enters the door area of ​​the next stop floor but has not reached the stop area.

[0019] Preferably, the waveform analysis unit determines the movement phase of the elevator car during a startup process according to the following rule:

[0020] Definition: When the elevator car approaches and finally stops at the stop floor, the detection object that detects the detected object first is defined as the first detection object, and the detection object that detects the detected object later is defined as the second detection object;

[0021] When the first detection body detects the detected object and the second detection body does not detect the detected object, the waveform analysis unit determines that the elevator car is in the front section of the door area;

[0022] When neither the first detection body nor the second detection body detects the detected object and the next adjacent motion stage is the front section of the door area, the waveform analysis unit determines that the elevator car is in the front section of the door entry area;

[0023] When both the first detection body and the second detection body detect the detected object, the waveform analysis unit determines that the elevator car is in the stop section;

[0024] When the first detection body does not detect the detected object and the second detection body detects the detected object, the waveform analysis unit determines that the elevator car is in the rear section of the door area;

[0025] When neither the first detection body nor the second detection body detects the detected object and the previous adjacent motion stage is the rear section of the door area, the waveform analysis unit determines that the elevator car is in the rear section of the exit door area.

[0026] Preferably, the new first motion stage is at least one of the front section of the door area, the stop section and the rear section of the door area, and the judgment unit determines that the elevator completes a start when the moving speed of the new first motion stage is less than a corresponding threshold.

[0027] Preferably, the judgment unit preferentially adopts the stop segment as the new first motion stage.

[0028] Preferably, the judgment unit determines the total number of times k that the elevator car passes through the door area and starts from the door area by counting the number of a certain movement stage in the movement of the car; judges whether the elevator car passes through the door area or starts from the door area according to the relationship between the moving speed of the car in the movement stage and the corresponding threshold of the movement stage, and takes the number of times the moving speed of the car in the movement stage is greater than the corresponding threshold of the movement stage as the number of times m that the elevator car passes through the door area; if km=1, the judgment unit determines that the elevator has completed one start; if km≠1, the judgment unit determines that a misjudgment occurs and outputs a warning message.

[0029] Preferably, when the door area starting process is the process of the elevator car starting from stopping in the door area of ​​the stop floor to accelerating and moving until leaving the door area of ​​the stop floor, the judgment unit counts the number j of a certain movement stage of the elevator car in the door area starting process, and sets the total number k=j; when the door area starting process is the process of the elevator car starting from the door area of ​​the current stop floor to accelerating and moving until decelerating and stopping at the next stop floor, the judgment unit counts the number j of a certain movement stage of the elevator car in the door area starting process, if the movement stage counted by the judgment unit is the stop section, then the total number of times the elevator car passes through the door area and starts from the door area k=j-1, if the movement stage counted by the judgment unit is not the stop section, then the total number of times the elevator car passes through the door area and starts from the door area k=j.

[0030] Preferably, when km>1, the warning information includes information that the analysis result of the waveform analysis unit is incorrect or information that the corresponding threshold value of the exercise stage is too large;

[0031] When km<1, the warning information includes information that the analysis result of the waveform analysis unit is incorrect or the corresponding threshold value of the motion stage is too small.

[0032] Preferably, the speed calculation unit calculates the moving distance corresponding to the motion stage based on the pre-stored length of the detected object and the distance between the upper detector and the lower detector, and calculates the moving speed of the elevator car in the motion stage based on the moving distance and the duration of the motion stage output by the waveform analysis unit.

[0033] Preferably, the speed calculation unit determines the moving distance according to the following rule:

[0034] The moving distance of the front section of the door area and the rear section of the door area is equal to the distance between the upper detector and the lower detector;

[0035] The moving distance of the stop section is equal to the difference obtained by subtracting the distance between the upper detector and the lower detector from the length of the detected object.

[0036] The device for measuring the number of elevator starts of the present invention fully utilizes the characteristic that the elevator start must start from the door area (unless it is restarted after a fault such as an emergency stop or manually started at a low speed), utilizes the huge speed difference between the car passing through the door area and the car stopping at the door area, utilizes the characteristic that the average speed in the stop area is extremely low when the car stops at a floor, determines the identification features of the stop area and the door entry and exit area according to the detection signal of the door area sensor, and uses the identification features of the stop area and the door entry and exit area to realize the measurement of the number of elevator starts. The door area sensor signal originally used for elevator stopping and leveling can be used to realize the measurement of the number of elevator starts without adding new sensors. Without relying on the relevant information of the elevator control panel, the measurement of the number of elevator starts can be realized at low cost, conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a structural schematic diagram of an embodiment of an elevator start number measuring device of the present invention;

[0039] Figure 2 It is a schematic diagram of the door zone sensor signal of the elevator car that continues to move upward after moving upward to the current stop floor according to an embodiment of the elevator start number measuring device of the present invention;

[0040] Figure 3 It is a schematic diagram of the door zone sensor signal of the elevator start number measuring device according to one embodiment of the present invention when the car goes up to the current stop floor and then goes down in the reverse direction. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1

[0043] Figure 1 As shown, the elevator start times measuring device comprises:

[0044] The door zone sensor is composed of a detected body installed in the hoistway and a detection body installed on the car, and is used to detect the door zone signal when the elevator car enters and leaves the door zone;

[0045] A waveform analysis unit, used to analyze the door zone signal output by the door zone sensor, and output the movement stage of the elevator car during a door zone startup process;

[0046] a speed calculation unit, for calculating the moving speed of the elevator car during the movement phase;

[0047] a judging unit, configured to judge whether the elevator has completed one start according to the motion stage output by the waveform analyzing unit and the moving speed corresponding to the motion stage output by the speed calculating unit;

[0048] The counting unit determines whether to add 1 to the counting result according to the judgment result of the judgment unit. If it is judged that the elevator has completed one start, the counting result is added 1.

[0049] Preferably, each door area of ​​the elevator is respectively fixedly provided with an object to be detected.

[0050] When an elevator starts to start, it needs to change the elevator car from a static state to a moving state from a certain stop floor (or after waiting for passengers to enter and exit the car and close the door), and start to accelerate at a certain acceleration (the acceleration is not necessarily constant, and there may be jerk) and gradually move, so as to leave the stop floor. Before the elevator starts to start once, it must be started at the departure floor and stopped in the stop area after reaching the destination floor. Therefore, the elevator's completed start cycle (including the start section, the uniform speed section, and the deceleration until the stop) can be regarded as a start of the elevator, which can be the elevator car leaving the last stop floor to arrive at the current stop floor, or the elevator car leaving the current stop floor to arrive at the next stop floor.

[0051] By analyzing the process of the elevator car passing through and leaving a certain floor after stopping, it can be found that although the waveform with the moving distance as the horizontal axis is the same, the corresponding moving speed (or corresponding duration, because the distance of each stage is fixed and unchanged) of the elevator car in each stage of the waveform is different in the two cases. Therefore, in order to distinguish between the elevator car passing through but not stopping at the floor and the car stopping at the floor and then starting to leave the floor, the relevant time information (i.e. speed information) of the elevator car in the door area can be introduced.

[0052] The elevator start number measuring device of the first embodiment makes full use of the characteristic that the elevator start must start from the door area (unless it is restarted after a fault such as an emergency stop or manually started at a low speed), utilizes the huge speed difference between the car passing through the door area and the door area when it stops, and utilizes the characteristic that the average speed in the stop area is extremely low when the car stops at a floor. According to the detection signal of the door area sensor, the identification characteristics of the stop area and the door entry and exit area are determined, and the identification characteristics of the stop area and the door entry and exit area are used to realize the measurement of the number of elevator starts. The door area sensor signal originally used for elevator parking and leveling can be used to realize the measurement of the number of elevator starts without adding new sensors. Without relying on the relevant information of the elevator control panel, the number of elevator starts can be measured at low cost, conveniently and quickly.

[0053] Embodiment 2

[0054] Based on the elevator start number measuring device of embodiment 1, the detection body includes an upper detector and a lower detector arranged on the elevator car along the shaft direction, and the waveform analysis unit analyzes at least two different forward and backward movement stages of the elevator car in the first movement stage and the second movement stage of a door area start-up process according to a combination of detection signals output by the upper detector and the lower detector.

[0055] Preferably, the upper detector is arranged on the top of the car; and the lower detector is arranged on the bottom of the car.

[0056] In order to detect the leveling position, two detectors are usually set at a certain distance. The detected object and the detector can be as disclosed in Chinese patent application CN200680055531.4 and Chinese patent document CN1492832A.

[0057] Embodiment 3

[0058] Based on the elevator start times measuring device of embodiment 2, the judgment unit judges whether a new first motion stage is received according to the second motion stage output by the waveform analysis unit, and further judges the relationship between the moving speed corresponding to the new first motion stage and the corresponding threshold value to determine whether the elevator has completed a start when the judgment result is yes.

[0059] Preferably, the new first motion stage is at least one of the front section of the door area, the stop section and the rear section of the door area, and the judgment unit determines that the elevator completes a start when the moving speed of the new first motion stage is less than a corresponding threshold.

[0060] Preferably, the judgment unit preferentially adopts the stop segment as the new first motion stage.

[0061] Taking into account that when the elevator car passes by a floor instead of stopping at that floor, with the moving distance of the car as the horizontal coordinate, the waveform output by the door area sensor is basically the same as the waveform when the car stops at that floor and then starts to leave that floor. Obviously, the elevator car passing by a floor instead of stopping at that floor should not be counted in the number of elevator starts. Only when the elevator car stops at that floor does it need to be counted as an elevator start.

[0062] Embodiment 4

[0063] Based on the elevator start times measuring device of the third embodiment, the door area starting process is the process from the elevator car stopping in the door area of ​​the stop floor to the accelerated movement until leaving the door area of ​​the stop floor, and the movement stages included in the door area starting process are the stop section located in the door area stop area, the door area rear section except the stop section in the door area, and the leaving door section after leaving the door area; or,

[0064] The door area starting process is the process of the elevator car starting from the door area of ​​the current stop floor to accelerating and finally decelerating to stop at the next stop floor. The movement stages included in the door area starting process are the stop section located in the door area stop area of ​​the current stop floor, the rear section of the door area located in the door area of ​​the current stop floor except the stop section, the leaving door section after leaving the door area, the front section of entering the door area before entering the door area of ​​the next stop floor, and the front section of the door area that enters the door area of ​​the next stop floor but has not reached the stop area.

[0065] When the car goes up to the current stop floor and continues to go up, Figure 2 As shown, the horizontal axis is the moving distance. When the output signal of the upper detector changes from a low level to a high level, it indicates that the upper detector passes the position of the detected object, and the car enters the door area of ​​this stop layer; as the car continues to move upward, the output signal of the lower detector changes from a low level to a high level, indicating that the lower detector passes the position of the detected object, and the car arrives at the stop area of ​​this stop layer. After the elevator car stops, the door opens to detect the entry and exit of the car, the car closes the door and starts, and the car continues to move upward; when the car leaves the stop area of ​​this stop layer, the output signal of the upper detector changes from a high level to a low level, indicating that the upper detector is away from the position of the detected object, the car begins to leave the stop area of ​​this stop layer but the lower part is still in the door area; the car continues to move upward, and the output signal of the lower detector changes from a high level to a low level, indicating that the lower detector is away from the position of the detected object, and the car moves upward as a whole to leave the door area of ​​this stop layer.

[0066] When the car goes up to the current stop floor and then goes down in the reverse direction, Figure 3As shown, the horizontal axis is the moving distance. When the output signal of the upper detector changes from low level to high level, it indicates that the upper detector passes the position of the detected object, and the car enters the door area of ​​this stop layer; as the car continues to move upward, the output signal of the lower detector changes from low level to high level, indicating that the lower detector passes the position of the detected object, and the car arrives at the stop area of ​​this stop layer. After the elevator stops, the door is opened to detect the entry and exit of the car, the car closes the door and starts, and the car moves downward in the opposite direction; when the car leaves the stop area of ​​this stop layer, the output signal of the lower detector changes from high level to low level, indicating that the lower detector is away from the position of the detected object, the car begins to leave the stop area of ​​this stop layer but is still in the door area, the car continues to move downward, and the output signal of the upper detector changes from high level to low level, indicating that the upper detector is away from the position of the detected object, and the car moves downward as a whole to leave the door area of ​​this stop layer.

[0067] Embodiment 5

[0068] Based on the elevator start times measuring device of the fourth embodiment, the waveform analysis unit determines the movement phase of the elevator car during a start-up process according to the following rule:

[0069] Definition: When the elevator car approaches and finally stops at the stop floor, the detection object that detects the detected object first is defined as the first detection object, and the detection object that detects the detected object later is defined as the second detection object;

[0070] When the first detection body detects the detected object and the second detection body does not detect the detected object, the waveform analysis unit determines that the elevator car is in the front section of the door area;

[0071] When neither the first detection body nor the second detection body detects the detected object and the next adjacent motion stage is the front section of the door area, the waveform analysis unit determines that the elevator car is in the front section of the door entry area;

[0072] When both the first detection body and the second detection body detect the detected object, the waveform analysis unit determines that the elevator car is in the stop section;

[0073] When the first detection body does not detect the detected object and the second detection body detects the detected object, the waveform analysis unit determines that the elevator car is in the rear section of the door area;

[0074] When neither the first detection body nor the second detection body detects the detected object and the previous adjacent motion stage is the rear section of the door area, the waveform analysis unit determines that the elevator car is in the rear section of the exit door area.

[0075] Embodiment 6

[0076] Based on the elevator start number measuring device of embodiment 4, the judgment unit determines the total number of times k that the elevator car passes through the door area and starts from the door area by counting the number of a certain movement stage in the movement process of the car; judges whether the elevator car passes through the door area or starts from the door area according to the relationship between the moving speed of the car in the movement stage and the corresponding threshold of the movement stage, and takes the number of times the moving speed of the car in the movement stage is greater than the corresponding threshold of the movement stage as the number m of times the elevator car passes through the door area; if km=1, the judgment unit determines that the elevator has completed one start; if km≠1, the judgment unit determines that a misjudgment occurs and outputs a warning message.

[0077] Preferably, when the door zone starting process is a process from the elevator car stopping in the door zone of the stop floor to the elevator car accelerating and moving until it leaves the door zone of the stop floor, the judgment unit counts the number j of a certain movement stage of the elevator car in the door zone starting process, and sets the total number k=j;

[0078] When the door zone starting process is the process of the elevator car starting from the door zone of the current stop floor to accelerating and moving until decelerating and stopping at the next stop floor, the judgment unit counts the number j of a certain movement stage of the elevator car in the door zone starting process. If the movement stage counted by the judgment unit is the stop section, the total number of times the elevator car passes through the door zone and starts from the door zone is k=j-1. If the movement stage counted by the judgment unit is not the stop section, the total number of times the elevator car passes through the door zone and starts from the door zone is k=j.

[0079] Preferably, when km>1, the warning information includes information that the analysis result of the waveform analysis unit is incorrect or the corresponding threshold of the motion stage is too large; when km<1, the warning information includes information that the analysis result of the waveform analysis unit is incorrect or the corresponding threshold of the motion stage is too small.

[0080] Preferably, the threshold corresponding to the motion stage is greater than the minimum rated speed of the elevator.

[0081] Considering that when the elevator car passes by a certain floor instead of stopping at the floor, the waveform output by the detector is the same as the waveform when the car stops at the floor and then starts to leave the floor (the reason is that the horizontal axis is the moving distance of the car instead of the time), it is obvious that the former should not be counted, and only the latter needs to be counted as the elevator start. By analyzing the process of the elevator car passing by and leaving a certain floor after stopping, it can be found that although the waveform with the moving distance as the horizontal axis is the same, the corresponding moving speed (or duration, because the length of each stage is fixed and unchanged) of the elevator car in each stage of the waveform is different in the two cases. Therefore, in order to distinguish between the elevator car passing by instead of stopping at the floor and the car stopping at the floor and then starting to leave the floor, the relevant event information of the elevator car in the door area (i.e., speed information) can be introduced.

[0082] Embodiment 7

[0083] Based on the elevator start-time measuring device of Example 4, the speed calculation unit calculates the moving distance corresponding to the motion stage according to the pre-stored length of the detected object and the distance between the upper detector and the lower detector, and calculates the moving speed of the elevator car in the motion stage according to the moving distance and the duration of the motion stage output by the waveform analysis unit.

[0084] Preferably, the speed calculation unit determines the moving distance according to the following rule:

[0085] The moving distance of the front section of the door area and the rear section of the door area is equal to the distance between the upper detector and the lower detector;

[0086] The moving distance of the stop section is equal to the difference obtained by subtracting the distance between the upper detector and the lower detector from the length of the detected object.

[0087] Embodiment 8

[0088] Based on the elevator start times measuring device of the second embodiment, the upper detector and the lower detector may be photoelectric, magnetic, or eddy current.

[0089] Preferably, the detected object is a long strip of metal plate.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An elevator start-time measuring device, characterized in that: It includes: The door zone sensor is composed of a detected body installed in the hoistway and a detection body installed on the car, and is used to detect the door zone signal when the elevator car enters and leaves the door zone; the detection body includes an upper detector and a lower detector arranged on the elevator car along the hoistway direction; A waveform analysis unit, for analyzing at least two different forward and backward movement phases of the elevator car in a first movement phase and a second movement phase during a door zone start-up process according to a combination of detection signals output by the upper detector and the lower detector; a speed calculation unit, for calculating the moving speed of the elevator car during the movement phase; A judging unit, used to judge whether a new first motion stage is received according to the second motion stage output by the waveform analyzing unit, and further judge whether the elevator has completed a start by judging the magnitude relationship between the moving speed corresponding to the new first motion stage and the corresponding threshold value when the judging result is yes; The counting unit determines whether to add 1 to the counting result according to the judgment result of the judgment unit.

2. The elevator start number measuring device according to claim 1, characterized in that: The door zone start process is a process in which the elevator car starts to stop in the door zone of the stop floor and accelerates to leave the door zone of the stop floor. The movement stages included in the door zone start process are the stop section in the door zone stop area, the door zone rear section in the door zone except the stop section, and the door zone leaving section after leaving the door zone; or The door area starting process is the process of the elevator car starting from the door area of ​​the current stop floor to accelerating and finally decelerating to stop at the next stop floor. The movement stages included in the door area starting process are the stop section located in the door area stop area of ​​the current stop floor, the rear section of the door area located in the door area of ​​the current stop floor except the stop section, the leaving door section after leaving the door area, the front section of entering the door area before entering the door area of ​​the next stop floor, and the front section of the door area that enters the door area of ​​the next stop floor but has not reached the stop area.

3. The elevator start number measuring device according to claim 2, characterized in that: The waveform analysis unit determines the movement phase of the elevator car during a startup process according to the following rules: Definition: When the elevator car approaches and finally stops at the stop floor, the detection object that detects the detected object first is defined as the first detection object, and the detection object that detects the detected object later is defined as the second detection object; When the first detection body detects the detected object and the second detection body does not detect the detected object, the waveform analysis unit determines that the elevator car is in the front section of the door area; When neither the first detection body nor the second detection body detects the detected object and the next adjacent motion stage is the front section of the door area, the waveform analysis unit determines that the elevator car is in the front section of the door entry area; When both the first detection body and the second detection body detect the detected object, the waveform analysis unit determines that the elevator car is in the stop section; When the first detection body does not detect the detected object and the second detection body detects the detected object, the waveform analysis unit determines that the elevator car is in the rear section of the door area; When neither the first detection body nor the second detection body detects the detected object and the previous adjacent motion stage is the rear section of the door area, the waveform analysis unit determines that the elevator car is in the rear section of leaving the door area.

4. The elevator start number measuring device according to claim 3, characterized in that: The new first motion stage is at least one of a door area front section, a stop section and a door area rear section, and the judgment unit determines that the elevator completes a start when the moving speed of the new first motion stage is less than a corresponding threshold.

5. The elevator start number measuring device according to claim 4, characterized in that: The judgment unit preferentially adopts the stop segment as a new first motion stage.

6. The elevator start number measuring device according to claim 2, characterized in that: The judging unit, Determine the total number of times k that the elevator car passes through the door zone and starts from the door zone by counting the number of a certain movement phase during the movement of the car; According to the relationship between the moving speed of the elevator car in the certain motion stage and the corresponding threshold value of the certain motion stage, it is judged whether the elevator car passes through the door area or starts from the door area, and the number of times the moving speed of the elevator car in the certain motion stage is greater than the corresponding threshold value of the certain motion stage is taken as the number of times the elevator car passes through the door area m; If km=1, the judgment unit determines that the elevator has completed one start; If km≠1, the judgment unit determines that a misjudgment occurs and outputs a warning message.

7. The elevator start number measuring device according to claim 6, characterized in that: When the door zone starting process is a process from the elevator car stopping in the door zone of the stop floor to the elevator car accelerating and moving until it leaves the door zone of the stop floor, the judgment unit counts the number j of a certain movement stage of the elevator car in the door zone starting process, and sets the total number k=j; When the door zone starting process is the process of the elevator car starting from the door zone of the current stop floor to accelerating and moving until decelerating and stopping at the next stop floor, the judgment unit counts the number j of a certain movement stage of the elevator car in the door zone starting process. If the certain movement stage counted by the judgment unit is a stop segment, the total number of times the elevator car passes through the door zone and starts from the door zone is k=j-1. If the certain movement stage counted by the judgment unit is not the stop segment, the total number of times the elevator car passes through the door zone and starts from the door zone is k=j.

8. The elevator start number measuring device according to claim 7, characterized in that: When km>1, the warning information includes information that the analysis result of the waveform analysis unit is incorrect or information that the corresponding threshold of a certain movement stage is too large; When km<1, the warning information includes information that the analysis result of the waveform analysis unit is wrong or the corresponding threshold value of the certain movement stage is too small.

9. The elevator start number measuring device according to claim 3, characterized in that: The speed calculation unit calculates the moving distance corresponding to each motion stage based on the pre-stored length of the detected object and the distance between the upper detector and the lower detector, and calculates the moving speed of the elevator car in the corresponding motion stage based on the moving distance and the duration of the corresponding motion stage output by the waveform analysis unit.

10. The elevator start times measuring device according to claim 9, characterized in that: The speed calculation unit determines the moving distance according to the following rule: The moving distance of the front section of the door area and the rear section of the door area is equal to the distance between the upper detector and the lower detector; The moving distance of the stop section is equal to the difference obtained by subtracting the distance between the upper detector and the lower detector from the length of the detected object.

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