CN117566239A - 可识别使用状态的塑料托盘及其识别方法 - Google Patents
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Abstract
本发明涉及一种可识别使用状态的塑料托盘,包括顶面面板及若干墩角,三个墩角为一组通过连接板连接形成叉装通道,顶面板面上位于墩角四周设置有镂空网孔,镂空网孔内安装智能模组。本发明还涉及一种可识别使用状态的智能塑料托盘识别方法。本发明减少对托盘承重能力的破坏,相比于压力传感器安装于托盘承重墩角的方式,该智能网格塑料托盘的智能模组安装于镂空网孔中,不会影响托盘内部应力,有利于保持托盘载重结构的稳定性;同时能够适用于既有托盘改造,可应用于既有网格塑料托盘的智能化改造,令新生产网格塑料托盘和既有网格塑料托盘均可实现使用状态的自动精准识别。
Description
技术领域
本发明属于仓储物流载具技术领域,涉及托盘,特别涉及一种可识别使用状态的塑料托盘及其识别方法。
背景技术
塑料托盘是一种主要应用于物流、运输行业的水平平台装置,可用来存放、装载、搬运货物,是现代化物流仓储中必不可少的物流设备之一,也是适应物流业发展的必然产物。随着食品安全观念的不断强化,医药行业卫生性的高要求,塑料托盘以其防腐蚀、防潮湿、防锈蚀、抗虫蛀、抗霉等特点受到食品、医药行业的青睐和追捧。此外,塑料托盘的承载性能高和使用寿命长等特点,在化工、轻纺、制造业等领域有着广泛的应用。
近年来,塑料托盘市场发展迅速,塑料托盘保有量和产销量呈现快速增长态势。2022年我国塑料托盘保有量达到了7.2亿片,较2021年增长1.21亿片;产销量2022年也较上年度明显增长。面对发展如此迅速的塑料托盘市场,如何解决托盘的重复使用、循环共用问题一直是各方关注的焦点。实现塑料托盘重复使用、循环使用,关键在于对可调拨资源的准确掌握,在了解系统中空置托盘数量与托盘需求的情况下,才可能做出精准调拨。
针对塑料托盘的使用状态识别问题,已经发展出压力传感器/重力传感器、RFID标签和蓝牙标签、磁感应识别等多种技术方案,使用较多的为磁感应识别方法,磁感应识别为在塑料托盘墩角底部安装永磁体,墩角对应的托盘正面安装霍尔传感器,底面永磁体与托盘正面霍尔传感器处于托盘俯视平面上同一位置。通过霍尔传感器和永磁体的适当选型,将两者产生感应的距离阈值设置为略大于托盘高度,以避免同一托盘的霍尔传感器与其自身永磁体间建立联系。当托盘处于堆码状态时,上方托盘永磁体将与下方托盘的霍尔传感器发生感应,触发霍尔传感器,此时判定托盘为空置状态;若未霍尔传感器未被激活,说明托盘之间存在货物,判定托盘为在用状态。
该种方法存在的不足之处在于:
(1)在堆码状态下处于最上方的托盘无法获取到外部磁感应信号,因而其使用情况将处于未知状态;
(2)该方法对托盘堆码的整齐度要求极高,上下托盘间不能产生交错,否则即便在堆码状态下,上下方两托盘的永磁体与霍尔传感器仍不能产生感应,造成判别失效;
(3)平铺于地面的空置状态托盘与平铺的装载托盘均无法获取到外部电磁信号,因此该方案无法有效将平铺状态下的空置托盘和装载托盘做出区分。
有源RFID标签、蓝牙标签和霍尔传感器这几类托盘使用状态判别方式,其功能实现均依赖于对设备间距离的判定,通常需要将传感器安装在中央墩角内,若安装于其他位置则会极大影响传感器判别结果,因此不论是对于新生产托盘还是既有托盘的改装,该类方法均受到极大限制。
另一方面,基于塑料材质的特殊性,塑料托盘一般使用高压注射成型、结构泡沫成型、热成型等方式进行制作,生产过程通常伴随高温高压。若采用预埋传感器的方式,则极有可能在生产加工过程中造成传感器失效,当发现传感器不能正常工作时,只能将托盘做回收处理,带来较大的资源浪费。
而且,现有专利中涉及的托盘使用状态检测方案,均将有源RFID、有源蓝牙标签、LoRa、NBIoT、4GCat1等传感器安装于托盘墩角内,或采用无源RFID方式外置于托盘墩角的表面。这些方案仅考虑了新托盘的制作,只有在生产阶段才能按照其设计进行传感器和电子标签的安装。但对于海量的、已在物流系统投入运营托盘的托盘而言,其该类方法的改造成本巨大、所需工期也十分漫长。
发明内容
本发明的目的在于克服现有技术的不足,提出一种可识别使用状态的塑料托盘及其识别方法。
本发明解决其技术问题是通过以下技术方案实现的:
一种可识别使用状态的塑料托盘,其特征在于:包括顶面面板及顶面面板下端连接的若干墩角,所述若干墩角通过连接板连接形成叉装通道,所述叉装通道可四向进叉,所述顶面板面上位于所述墩角四周设置有镂空网孔,所述镂空网孔内安装智能模组。
而且,所述智能模组包括电池、测距传感器、移动通讯模块及加速度传感器,所述测距传感器、移动通讯模块及加速度传感器均与电池连接,所述测距传感器连接至所述移动通讯模块,所述加速度传感器连接至所述测距传感器,所述移动通讯模块连接至外部云服务器。
而且,所述测距传感器为激光测距传感器、雷达测距传感器或红外测距传感器。
而且,所述智能模组的上表面低于所述顶面面板上表面。
而且,所述智能模组采用过盈方式或胶粘连接安装于所述镂空网孔内。
而且,所述智能模组上表面设置有信号发射孔,所述智能模组发出的信号与顶面面板平面垂直。
一种可识别使用状态的塑料托盘的识别方法,其特征在于:所述方法的步骤为:
S1、确定塑料托盘基础参数,包括外部尺寸、镂空网孔规格,设托盘高度为h托盘,镂空网孔深度为h网格孔,智能模组高度为h模组,模组高度与镂空网孔深度接近,但略小于后者,因此有h网格孔-h模组≈0+;
S2、测距传感器测距:测距传感器进行测距,记智能模组的测距传感器所取得的距离读数为d;
S3、数据处理:
a、当d≈0时,表明智能模组的测距传感器的信号被托盘上方所载货物的底面所反射,判定此时托盘处于装载状态;
b、当d≥h托盘-h网格孔或d>>h托盘(远大于托盘高度)或(距离为空值)时,表明智能模组的测距传感器的信号被上方托盘网格孔下沿等位置所反射,或无法监测到上方有遮挡物而不能取得有效读数,判定此时托盘处于空置状态。
本发明的优点和有益效果为:
1、本发明的结构简单,托盘结构简单,相比于压力传感器安装于托盘承重墩角的方式,该智能网格塑料托盘的智能模组安装于载货铺面镂空网孔中,不会影响托盘内部应力,有利于保持托盘载重结构的稳定性。
2、本发明使得托盘使用状态判别更精准,通过测距传感器测量的距离不同,精准区分托盘的装载和空置状态,相比于压力传感器检测和RFID识别方式,有效避免了空托盘堆码与装载状态下压力传感器读数相近致使无法区分;且不会因标签识别距离相近导致将托盘平铺装载与托盘平铺等状态相混淆。
3、本发明采用非接触传感方式,不影响智能设备及货物,塑料托盘通过激光、雷达、红外传感识别货物,不与货物直接接触,可有效延长智能塑料托盘及智能模组使用寿命,同时避免对货物产生影响。
4、本发明能够节约制造成本,一个塑料托盘仅需配备1个智能模组,相比多个在托盘上安装多个压力传感器或在货物上逐个安装RFID标签的方式,能节约大量资金和人力、物力。
5、本发明安装便利、可靠性高。智能模组在托盘上的安装位置可选取托盘载货平面上任意不与托盘纵梁、墩角相重合的镂空网格孔中,均可供智能模组安装;特别地,对在运行中处于堆码状态的托盘,无需借助安装工具即可以实现传感器的安装和更换,也无需进行托盘拆垛、托盘拆解等繁琐过程,智能模组的安装、更换、维修十分方便。
附图说明
图1为本发明的结构示意图;
图2为本发明的俯视图;
图3为图2的A-A向视图;
图4为本发明的智能模组连接原理图;
图5为本发明的智能模组结构示意图;
图6为本发明的塑料托盘装载状态示意图;
图7为本发明的塑料托盘空置状态示意图。
附图标记说明
1-顶面面板、2-墩角、3-叉装通道、4-镂空网孔、5-智能模组、6-信号发射孔。
具体实施方式
下面通过具体实施例对本发明作进一步详述,以下实施例只是描述性的,不是限定性的,不能以此限定本发明的保护范围。
一种可识别使用状态的塑料托盘,其创新之处于:包括顶面面板1及顶面面板下端连接的若干墩角2,所述若干墩角的个数为7个或9个:当墩角为7个时,两侧分别对称安装2个,中间间隔安装3个;当墩角为9个时,两侧及中间均间隔安装3个,所述若干墩角通过连接板连接形成叉装通道3,所述叉装通道可四向进叉,方便叉车、地牛等装卸设备叉脚四向进入;所述顶面板面上位于所述墩角四周设置有镂空网孔4,所述镂空网孔内安装智能模组5。
对于1100mm*1100mm*160mm的塑料托盘而言,顶面面板上至少有24个镂空网格孔可供智能模组安装。
所述智能模组包括电池、测距传感器、移动通讯模块及加速度传感器,所述红外测距传感器、移动通讯模块及加速度传感器均与电池连接,所述红外测距传感器连接至所述移动通讯模块,所述加速度传感器连接至所述红外测距传感器,所述移动通讯模块连接至外部云服务器。测距传感器选用雷达测距传感器。
智能模组的上表面低于所述顶面面板上表面。
智能模组采用过盈方式或胶粘连接安装于所述镂空网孔内。
智能模组上表面设置有信号发射孔6,所述智能模组发出的雷达测距信号与顶面面板平面垂直。
一种可识别使用状态的塑料托盘的识别方法,其创新之处在于:所述方法的步骤为:
S1、确定塑料托盘基础参数,包括外部尺寸、镂空网孔规格,托盘高度为h托盘=160mm,镂空网孔深度为h网格孔=44mm,智能模组高度为h模组=42mm,模组高度与镂空网孔深度接近,但略小于后者;
S2、测距传感器测距:雷达测距传感器进行测距,记智能模组的雷达测距传感器所取得的距离读数为d;
S3、数据处理:
a、当d≈0时,表明智能模组的雷达测距传感器的红外信号被托盘上方所载货物的底面所反射,判定此时托盘处于装载状态;
b、当d≥116mm或d>>160mm(远大于托盘高度)或(距离为空值)时,表明智能模组的测距传感器的信号被上方托盘网格孔下沿等位置所反射,或无法监测到上方有遮挡物而不能取得有效读数,判定此时托盘处于空置状态。
尽管为说明目的公开了本发明的实施例和附图,但是本领域的技术人员可以理解:在不脱离本发明及所附权利要求的精神和范围内,各种替换、变化和修改都是可能的,因此,本发明的范围不局限于实施例和附图所公开的内容。
Claims (7)
1.一种可识别使用状态的塑料托盘,其特征在于:包括顶面面板及顶面面板下端连接的若干墩角,所述若干墩角通过连接板连接形成叉装通道,所述叉装通道可四向进叉,所述顶面板面上位于所述墩角四周设置有镂空网孔,所述镂空网孔内安装智能模组。
2.根据权利要求1所述的可识别使用状态的塑料托盘,其特征在于:所述智能模组包括电池、测距传感器、移动通讯模块及加速度传感器,所述测距传感器、移动通讯模块及加速度传感器均与电池连接,所述测距传感器连接至所述移动通讯模块,所述加速度传感器连接至所述测距传感器,所述移动通讯模块连接至外部云服务器。
3.根据权利要求2所述的可识别使用状态的智能塑料托盘,其特征在于:所述测距传感器为激光测距传感器、雷达测距传感器或红外测距传感器。
4.根据权利要求1所述的可识别使用状态的塑料托盘,其特征在于:所述智能模组的上表面低于所述顶面面板上表面。
5.根据权利要求1所述的可识别使用状态的塑料托盘,其特征在于:所述智能模组采用过盈方式或胶粘连接安装于所述镂空网孔内。
6.根据权利要求1所述的可识别使用状态的塑料托盘,其特征在于:所述智能模组上表面设置有信号发射孔,所述智能模组发出的信号与顶面面板平面垂直。
7.一种如权利要求1~6任意一项所述可识别使用状态的塑料托盘的识别方法,其特征在于:所述方法的步骤为:
S1、确定塑料托盘基础参数,包括外部尺寸、镂空网孔规格,设托盘高度为h托盘,镂空网孔深度为h网格孔,智能模组高度为h模组,模组高度与镂空网孔深度接近,但略小于后者,因此有h网格孔-h模组≈0+;
S2、测距传感器测距:测距传感器进行测距,记智能模组的测距传感器所取得的距离读数为d;
S3、数据处理:
a、当d≈0时,表明智能模组的测距传感器的信号被托盘上方所载货物的底面所反射,判定此时托盘处于装载状态;
b、当d≥h托盘-h网格孔或d>>h托盘(远大于托盘高度)或(距离为空值)时,表明智能模组的测距传感器的信号被上方托盘网格孔下沿等位置所反射,或无法监测到上方有遮挡物而不能取得有效读数,判定此时托盘处于空置状态。
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